Here's another of mine:

Chapter 9: Nightmares and Daydreams Bloopers

*Toph picks up a bottle of water wand was about to drink it*

Aang: Don't drink that!

Toph: *spits the water all over Katara* Why? Is it poison?

Katara: *waterbends it off*

Aang: In my dream, we were in the invasion, and you had to stop to go to the bathroom. We all died because of your tiny bladder.

Tophweary) Hey....why do I suddenly feel...*she collapses to the floor*

Director: CUT!! Toph, what's wrong?

Toph: It's nothing.....I just.......can't get up.

Director: Why? You were fine before.

Toph: I think I have food poisoning....

Director: WHAT??? Why? *then he notices a Special Effects Guy carrying a bottle of poison*

Director: You! Why are you carrying that bottle?

Guy: I don't know what you're talking about.

Director: You poisoned that bottled water didn't you?

Guy: No...

Director: DID YOU!?!?!

Guy: All right I did!! Can't you take a joke?

Director: YOU'RE ON PROBATION!

Guy: F***!!

Katara: Wait a minute! That water was all over me!

Director: Aww man! Looks like this Episode will have to wait. Get these 2 girls out of here and cure them!

Guy: *Takes Toph and Katara to a quarantine Room where they'll be healed*

Director: Don't be too sad. You all get a raise for this. The next person to poison any water we use gets fired!

MDD: i want to make a naruto crossover!
BK: naruto?! why would you want to do that?!
MDD: naruto's a decent show with many similarities to avatar!
BK: noooo, because avatar doesn't s*ck! if you want to make a real crossover you would crossover lost!
MDD: LOST?! and you thought naruto was stupid!
BK: lost is better than naruto now give me teh lazer!
MDD: naruto is better and no!
*they fight over teh lazer, but accidentally blast it in a random direction, it reflects all over the place, hitting various DVDs and creating all sorts of havoc and chaos*

ozai: they never told you the true story of what happened to your father, did they zuko?
zuko: lolwut? dad you've been in the sun too long!
ozai: no, zuko, i am your father!
zuko: .....no sh*t sherlock!

ty lee: hey cutie! it looks like we're dancing!
sokka: ty lee, i think you're trying to seduce me!

azula: 3 nations descend upon the fire nation empire!
ozai: this is blasphemy, this is madness!
aang: madness? THIS IS AVATAR!!!!!!!!!!!!!

aang: sokka where are you going?
sokka: to get some food!
aang: but we have enough food!
sokka: yes, but we don't have any cheeseburgers!

combustion man: kiss my shiny metal @$$!!

cm: IMMA FIRIN MUH LAZER!!!!

sokka: by the way i was being sarcastic!

aang: it's time to d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-duel! sokka: oh lord no not again!

generic villain: give me 1 reason why i should surrender!
aang: actually there's 5!
sokka: 1!
toph: 2!
zuko: 3!
katara: 4!
aang: 5! however you do the math, it all adds up to you going down.

random citizen: is it a bird?
other random citizen: is it a plane?
other fandom citizen: no! it's superaang!

sokka: that is a nice boulder!

ozai: war is peace, freedom is slavery, ignorace is strength! 2+2=5!

sokka: hey! i'm the one who repeats stuff fo emphasis! EMPHASIS!

aang: F is for friends who do stuff together
U is for U and me!
N is for NEwhere at any time at all
down here in the deep blue sea!
zuko: F is for fire that burns down the whole town
U is for uranium...bombs!
N is for no survivooooors when we-
aang: zuko! that's not what the fun song is all about!
*some time later, in XroD*
*zuko shoots fire at aang*
aang: but..we sang the fun song!

aang: we're all in this togethe-WAIT!!!!!!!!
sokka: what? i was just getting into the tune of that song!
aang: THAT WAS THE STRAW THAT BROKE THE MOOSE-CAMEL'S BACK! high school musical?! why are we singing that FFS?!?!
?: because the creators told you to!
aang: who said that?
?: you can call me... the fourth wall!
katara: who are you?
4th wall: i am a spirit, but i'm not from the spirit world, i'm from the real world!
sokka: the real world? our world?
4th wall: no, the REAL world. you see, this is just a ficticious television show, none of what you have ever done is real!
toph: lolwut? are you saying... we're just a story?
4th wall: more or less.
aang: so who made the story?
4th wall: michael dante dimartino and bryan konietzko
zuko: then they are to blame for these gorrific crossovers!
4th wall: exactly! and i say we should make them suffer for it!
aang: well i agree! how do we get to this 'real world'?
4th wall: simple, you break me!
katara: i get it! it's like the expression 'breaking the 4th wall' when a character in a play knows they're a character in a play.
4th wall: exactly! now attack me, and a portal to MDD and BK will reveal iteslf!
*they attack 4th wall, he vanishes, and a swirling vortex appears*
aang: it's time to meet our makers!
sokka: aww! i wanted to say that!
*they step through the portal*

to be continued...

Here's one:

Episode 212 Bloopers

Sokka: *as Toph tries to walk across the ice* Just follow the sound of my voice!

Toph: It's hard to ignore.

Sokka: You're almost there.

*And then the serpent is sopposed to break the ice but instead it hits Toph right on the head*

Director: CUT!! In this scene, the fake serpent has to hit the ice! Not Toph!

Special Effects Guy: Sorry.

Director: Yeah. I'm sorry too. That YOU COULD'VE KILLED HER!

Toph: *pops up from the water* Help! Someone!

Director: AND YOU MADE THE WATER DEEP!

Special Effects Guy: Sorry.

Director: YOU'RE THE WORST SPECIAL EFFECTS GUY EVER! But I can't fire you. You're my only one. And I can't find another. Toph: SOMEONE HELP ME!! NOW!!

Director: I'll just put you on probation.

Toph: Someone........*drowns*

Director: Someone get her!

*A Crane picks her up from the water*

Director: Whoever can save her gets a raise!

*Everyone tries to get Toph to breathe*

Toph: *coughs* Where am I?

continuation:
MDD: just give me the damn lazer!
BK: NO! i want to do lost dammit!
MDD: GIVE ME THE-
*just then the gaang appear out of nowhere*
BK: COSPLAYERS!!!!! THEY'VE PASSED OUR DEFENCES!!
MDD: activating anti-cosplayer forcefield!
*a forcefield that repels all fanboys and fangirls appears out of nowhere*
aang: your days of making dumb parodies are over creators! i'm taking you down!
MDD: wow, that cosplayer sounds a lot like the real aang!
katara: he is the real aang stupids! we've broken the fourth wall to give you a piece of our mind!
BK: fourth wall? wow these fanfics are getting worse and worse!
zuko: THIS ISN'T A FANFICTION! we're the real deal!
MDD: *laughing* prove it 'zuko'!
*zuko shoots fire at them, the anti-cosplayer forcefield deflects it*
BK: i don't believe it! the real gaang!
sokka: we want to have a word with you!
toph: what's with all these dumb parodies?! you made me british! BRI-TISH!
MDD: hear us out! we had this cool crossover ray and we wanted to make a good crossover, with something decent, like naruto!
BK: naruto?! lost!
MDD: naruto!
BK: lost!
aang: lolwut? we don't know what these show you speak of are!
MDD: you guys are going back where you came from! now!
katara: or else what?
BK: or else we zap you with the crossover ray and make you mystery inc.
sokka: NOT SCOOBY DOO!!! ANYTHING BUT THAT!!!!
BK: now you have some explaining to do!
MDD: how did you get to the real world?
zuko: several minutes later...
BK: i see.
zuko: wow! that was amazing, all i said was 'several minutes later' and you understood everything!
BK: it's the writer's way of skipping dull parts of the story to get to the interesting bits.
MDD: did you just break the fourth wall?
BK: i did! on no! that means...
MDD/BK: we're fictional!
aang: which means...
gaang: THIS IS A FANFIC!!! NOOOO!!!!
4th wall: come on, let's show this creator a piece of our mind!
*they open a portal into the REAL real world*
tomtitan: i wish i had a girlfriend.
MDD: your days of tyranny are over fanfic creator! i'm taking you down!
tomtitan: o rly?
BK: ya rly!
*they all attack*
tomtitan: mwahahaha! you cannot defeat me! for i am making this fanfic!
aang: he's right, this is all in his imagination!
tomtitan: yes! and if i say... this is a scooby doo crossover, it becomes a scooby doo crossover! several minutes later!
zuko: oh no not that!

villager: you're going to be locked up forever!
hama: and i would've gotten away with it too, if it weren't for those meddling kids!
katara: NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

tomtitan: the end! mwahahahahahahaha!!!!!

A Crossover of:

Mermaid Man and Barnacle Boy V from Spongebob. Nice.

(Aang bursts into Fire Lord Ozai's chamber)
Aang: Your days of tyrrany are over, Fire Lord Ozai!
Fire Lord Ozai: Fool! You think you can defeat me? (voice gets distorted and the eye of XANA appears in his pupils) You do not know who I really am.
Aang: Wait, You're XANA!?
XANA-Ozai: Why do you think Sozin betrayed his best friend, Avatar Roku? I possessed him those many years ago and when he died, I possessed Azulon, and then finally Ozai. By controlling the Fire Lords, I have control of the entire Fire Nation, and soon I will have control over the entire world! (XANA's monsters suddenly surround Aang) Any last words, Avatar?
Aang: Just these words: MIKE, BRYON, ENOUGH WITH THE CROSSOVER RAY ALREADY!!!
(back with Mike and Bryon)
Bryon: Wasn't me. Mike?
Mike: Wasn't me, either.
(both creators look over at DanSandwichBoy who is waving the crossover ray around)
DSB: XD I'm sorry, I couldn't resist.

"The Warriors of Kyoshi"
Aang: You know what I think? You just don't want to come because you're jealous.
Katara: Jealous!? Of what?
Aang: Jealous because we're having so much fun without you.
Katara: That's ridiculous!
Aang: It is a little ridiculous, but I understand.
Katara: (scoffs and walks away) Air head.
(Katara's last line is cut out of audio later onfor unknown reasons)

now to post the entire crossover ray series!

Chapter 1: Momochu, I Choose You!

MDD: gues what bryan?
BK: what?!
MDD: i bought this awesome device!
BK: what is it?
MDD: it's a crossover ray! simply shoot at 2 DVDs and it makes a crossover of them!
BK: well what are we waiting for? shoot away! let's make a naruto-avatar crossover!
*they aim at a DVD of WAT and a naruto DVD and fire teh lazer, but the ray is reflected off the WAT DVD and hits an unknown DVD*
MDD: what did it hit? WHAT DID IT HIT?!
in the crossed-over DVD, the gaang are sitting in the WAT, eating breakfast
sokka: wow, what a normal and uneventful day, surely nothing exciting will happ- *giant net appears out of nowhere and captures momo, it is then dragged back*
sokka: oh great, now what?
?1: prepare for trouble we've captured your pet!
?2: make it double using this thunderproof net!
?1: to protect the world form devastation!
?2: to unite all peoples within our nation!
?1: to denounce the evils of truth and love!
?2: to extend our reach to the stars above!
?1: ty lee!
?2: mai!
ty lee: ozai's angels blast off at the speed of light!
mai: surrender now or prepare to fight fight fight!
azulowth: azulowth! that's right!
sokka: oh no it's ozai's angels!
teo: and they have momochu!
momochu: momo! momo!
ty lee: ahahahaha! we finally have momochu! now to sell him to the boss, we'll be made for life!
sokka: not if i can help it! go zumander!
*sokka throws a spherical device and zuko appears out of it*
zumander: zuko! zuko!
ty lee: azulowth! go!
sokka: zumander! use flamethrower!
*zuko shoots fire at azulowth*
mai: haha! fire type attacks aren't effective against other fire types!
teo: she's right! go! squirtata!
*teo throws another spherical device and katara comes out of it*
squirtara: katara!
teo: squirtara, use water gun!
*katara shoots water at azulowth*
ty lee: oh no! it's super effective! now azulowth, use zap cannon!
*azulowth shoots lightning at squirtara*
teo: oh no! it's super effective!
sokka: i know! i'll use pidgeyaangto! *sends out pidgeyaangto*
pidgeaangto: aang! aang!
sokka: now! use aerial ace on the net!
*pidgeyaangto flies to the net and cuts it open, freeing momochu*
sokka: momochu! use thunderbolt!
momo: mo...mo...CHUUUUUUU!!!!! *shoots lightning at ozai's angels, sending them flying*
all 3: looks like we're blasting off again!!!!!!!!!!!!!!
MDD: (watching this horrific crossover) BURN THE DVD!!! DESTROY IT! no one must ever see this horrific disaster!
BK: *destroys DVD* phew, that was close! so what should we crossover next?
MDD: i'm in the mood for some DBZ!
BK: yeah!

Chapter 2: HAAAAAAAAAAAAAAAAAAAA

MDD: ok so the pokemon crossover was a disaster
BK: dragonball z?
MDD: sounds good!
*they shoot the ray at an avatar DVD and a DBZ DVD, creating this...*
aang: your days of tyranny are over firelod, i'm taking you down! now i shall defeat you! *starts charging* HAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
ozai: no, it is i who will defeat you! HAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA both: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
*4 hours later*
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
aang: AAAAAAAAAAAAAAAAAAAAAAAAAAAA!!! *fires huge fireblast at ozai, ozai does the same, the fireblasts meet in midair*
ozai: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
aang: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
*fireblast gets pushed towards aang.
aang: NOOOOOOOO!!!!! I'M NOT STRONG ENOUGH!!!!
zuko: aang, let's do a fusion!
aang: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
zuko: what did you say?
aang: THAT'S A GREAT IDEA HAAAAAAAAAAAAAAAAA
aang/zuko: FUUUUUU *do funny moves* SIONNNNNNNN *do another funny move* HAAAAA!!!!! *do another funny move, they fuse together*
zukaang: I AM ZUKAANG HAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
ozai: OH NO! THEY ARE TOO STRONG HAAAAAAAAAAAAAAAA
zukaang: now let's do our super special awesome move HAAAAAAAAAAAAAAAAAAAAAAAAAA
*he begins charging a lazer*
zukaang: IMMA CHARGIN MUH LAZER!!!!!!!
ozai: ME TOO HAAAAA!!! *ozai begins charging his lazer*
zukaang: IMMA FIRIN MUH LAZER!!!!!!!!!
ozai: ME TOO HAAAAA!!!
*they both fire lazers at each other, the beams meet in mid air, but zukaang's beam is stronger and ozai gets pwned*
ozai: NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!
zukaang: now you have been defeated!
ozai: NOT QUITE! NOW I WILL TRANSFORM, BECOMING EVEN STRONGER!!!! HAAAAAAAAAAAAAAAA
*ozai transforms into ozai final form, who has bigger muscles and can fire bigger lazers*
ozai final form: NOW I AM UNSTOPPABLE HAAAAAAAAAAAAAAAAAAAAAAAA
katara: (who has watching from the sidelines the etire time because in DBZ, girls can't fight!) why didn't he just do that before?
toph: (who is in the same situation as katara) beats me!
sokk: OH NO I'M DYING HAAAAAAA!!!!!
katara: so?
ozai: I'M GONNA BLOW UP THE PLANET WITH MUH FINGUH HAAAAAAAAAAAAAAAAAAAAAAAA
zukaang: HAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
ozai: HAAAAAAAAAAAAAAAAAAAAAAAAAAA
zukaang: HAAAAAAAAAAAAAAAAAAAAAA
*this continues for several episodes*
ozai: HAAAAAAAAAAAAAAAAAAAAAAAAAA!!!!!!!!!!!!!!
*they both fly up into the air and have a massive hand-to hand fight which lasts for several episodes, during which no one gets hit*
zukaang: SUPER SPECIAL AWESOME MULTIPLE DEATH KAMEHAMEHA BEAM CANNON OF DOOOOOOOOOOOOOOM!!!!!!!!!!!!
ozai: OH NO! NOT THE SUPER SPECIAL AWESOME MULTIPLE DEATH KAMEHAMEHA BEAM CANNON OF DOOOOOOOOOOOOOOM!!!!!!!!!!!!
zukaang: that's right! the SUPER SPECIAL AWESOME MULTIPLE DEATH KAMEHAMEHA BEAM CANNON OF DOOOOOOOOOOOOOOM!!!!!!!!!!!!
ozai: NOOO!!!!
*he fires the beam cannon thingy at ozai*
ozai: NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!
ozai: now i will transform into mt final final form! HAAAAAAAAAAAAAAAAAAAAAAAA *this continues for several episodes*
*several episodes later*
ozai: NOW I AM FINAL FINAL FORM OZAI! HAAAAAAAAAAAAAAA

BK: ENOUGH! we already have more episodes than seasons 1, 2 and 3 combine!
MDD: this is going to go on forever isn't it?
BK: yup.
*they burn the DVD*
MDD: we should probably stop making these crossovers.
BK: yet they're so fun!
MDD: NOW I'M CHARGING MY CROSSOVER BEAM HAAAAAAAAAAAAAAAAAAAAAAAAAAAA!!!!!!!!!!!!!!!!!!!!
BK: LET'S DO OUR FUSION HAAAAAAAAAAAAAA!!!!!!!!!!!
bryke: WE ARE BRYKE HAAAAAAAAAAA!!!!!!!!!!!! Chapter 3: Heart of the Avatards

MDD: imma chargin muh lazer
BK: imma firin muh lazer!
*they fire teh lazer at 2 DVDs, 1 is avatar, 1 is...*
MDD: there, a heroes/avatar crossover, this should be good!
BK: uuh...you DO know this is a yugioh DVD, right?
MDD: nooooooooooooooo!!!!!!!
BK: and it's not the abridged series!
MDD: NOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!
*in the crossover*
aang: it's time to d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-duel!
ozai: now i will destroy you! i summon 'faceless firebender #1'
aang: fool! you activated my trap card!
zuko: (in brooklyn accent) i don't get it, why do i have a brooklyn accent? isn't this an anime?
sokka: you think you have it bad, i sound like barney the bear!
toph: that's nothing, i have an awful british accent!
katara: wow, i guess i got off lucky then!
sokka: i don't understand, if we're main characters, why don't we get to duel ever?
katara: because, this is an anime, and in animes only 1 main character gets to fight, all the others must watch from the sidelines.
aang: go my sky bison! attack his life points directly!
ozai: nooooo!!!!!
aang: hey katara after this duel do you wanna go out sometime?
katara: are you in the avatar state?
aang: uuh..no..
katara: then no!
aang: curses, foiled again!
azula: i challenge you to play a childrens card game to decide the fate of the world!
zuko: you're on!
azula: *giggling* what's with that brooklyn accent?
zuko: i don't know! help me please!
*they begin to duel*
ozai: AAH YEH BEAT MEH!
aang: now that i have beaten you in a children's card game, the world is safe once more!
katara, sokka and toph: hooray!

MDD: well, at least it wasn't as bad as the pokemon crossover!
BK: yeah, this one turned out ok!
MDD: burn it?
BK: definitely!
*they destroy the DVD*
MDD: so, what do we crossover next?
BK: we really should be making the real episodes!
MDD: oh well! Chapter 4: How to Stop an Exploding Aang

MDD: (after firin teh lazer) whew! we finally did it! a heroes avatar crossover! let's watch!
*sometime in season 1*
*aang is walking through the forest, on his way to meet the fortuneteller*
aang: wow, what a normal and totally uneventfu-
*sokka appears out of nowhere, but he looks strangely older*
aang: sokka?
sokka: aang, i have come from 5 years into your future, the kyoshi warrior, on kyoshi island, you must save her, ozai must not take her, or the world will be doomed, understand?
aang: so, save the kyoshi warrior, save the world?
sokka: correct *dissapears*

the mechanist: no! stay away from me and my sun dock!
xu: i'm not dock, i'm his brother xu! my hat gives me super strength! fear me!
teo: daddy i'm scared!

aang: these things i can do, these powers i have, they make me different, they make me...emo, and i don't have hair to emoize, and if i try cutting myself, katara just heals my wounds, what do i do?
sokka: i don't know, but i have to teleport to ba sing se to save suki! *does hiro's trademark concentrating face*
*appears in BSS*
sokka: yatta! hello ba sing se!
aang: stop being so happy! it makes it harder for me to be emo!
*giant explosion wipes out ba sing se*
sokka: MUSHROOM?!
aang: great! another thing for me to be emo about! i'm going to destroy ba sing se! give me that razor!
sokka: are you going to shave your head?
aang: sure, we'll go with that!
katara: not on my watch!
aang: dammit! i was so close to slitting my wrists!
duke: hi sokka!
sokka: who are you?
duke: it's me, the duke, your useless yet loveable sidekick!
sokka: no seriously, who are you?

MDD: i can't watch this anymore! it's too much of an emofest!
BK: *sigh* i'll get the fire started.
MDD: and why the hell did the duke and teo get so much screentime?! they got more screentime there than in every episode put together!
BK: so, what do we crossover next?

Chapter 5: The Fourth Wall, Part 1, Crossover Madness

MDD: i want to make a naruto crossover!
BK: naruto?! why would you want to do that?!
MDD: naruto's a decent show with many similarities to avatar!
BK: noooo, because avatar doesn't s*ck! if you want to make a real crossover you would crossover lost!
MDD: LOST?! and you thought naruto was stupid!
BK: lost is better than naruto now give me teh lazer!
MDD: naruto is better and no!
*they fight over teh lazer, but accidentally blast it in a random direction, it reflects all over the place, hitting various DVDs and creating all sorts of havoc and chaos*

ozai: they never told you the true story of what happened to your father, did they zuko?
zuko: lolwut? dad you've been in the sun too long!
ozai: no, zuko, i am your father!
zuko: .....no sh*t sherlock!

ty lee: hey cutie! it looks like we're dancing!
sokka: ty lee, i think you're trying to seduce me!

azula: 3 nations descend upon the fire nation empire!
ozai: this is blasphemy, this is madness!
aang: madness? THIS IS AVATAR!!!!!!!!!!!!!

aang: sokka where are you going?
sokka: to get some food!
aang: but we have enough food!
sokka: yes, but we don't have any cheeseburgers!

combustion man: kiss my shiny metal @$$!!

cm: IMMA FIRIN MUH LAZER!!!!

sokka: by the way i was being sarcastic!

aang: it's time to d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-d-duel! sokka: oh lord no not again!

generic villain: give me 1 reason why i should surrender!
aang: actually there's 5!
sokka: 1!
toph: 2!
zuko: 3!
katara: 4!
aang: 5! however you do the math, it all adds up to you going down.

random citizen: is it a bird?
other random citizen: is it a plane?
other fandom citizen: no! it's superaang!

sokka: that is a nice boulder!

ozai: war is peace, freedom is slavery, ignorace is strength! 2+2=5!

sokka: hey! i'm the one who repeats stuff fo emphasis! EMPHASIS!

aang: F is for friends who do stuff together
U is for U and me!
N is for NEwhere at any time at all
down here in the deep blue sea!
zuko: F is for fire that burns down the whole town
U is for uranium...bombs!
N is for no survivooooors when we-
aang: zuko! that's not what the fun song is all about!
*some time later, in XroD*
*zuko shoots fire at aang*
aang: but..we sang the fun song!

aang: we're all in this togethe-WAIT!!!!!!!!
sokka: what? i was just getting into the tune of that song!
aang: THAT WAS THE STRAW THAT BROKE THE MOOSE-CAMEL'S BACK! high school musical?! why are we singing that FFS?!?!
?: because the creators told you to!
aang: who said that?
?: you can call me... the fourth wall!
katara: who are you?
4th wall: i am a spirit, but i'm not from the spirit world, i'm from the real world!
sokka: the real world? our world?
4th wall: no, the REAL world. you see, this is just a ficticious television show, none of what you have ever done is real!
toph: lolwut? are you saying... we're just a story?
4th wall: more or less.
aang: so who made the story?
4th wall: michael dante dimartino and bryan konietzko
zuko: then they are to blame for these gorrific crossovers!
4th wall: exactly! and i say we should make them suffer for it!
aang: well i agree! how do we get to this 'real world'?
4th wall: simple, you break me!
katara: i get it! it's like the expression 'breaking the 4th wall' when a character in a play knows they're a character in a play.
4th wall: exactly! now attack me, and a portal to MDD and BK will reveal iteslf!
*they attack 4th wall, he vanishes, and a swirling vortex appears*
aang: it's time to meet our makers!
sokka: aww! i wanted to say that!
*they step through the portal*

to be continued... Chapter 6: The Fourth Wall, Part 2: Scooby-Dooby-Doo!

continuation:
MDD: just give me the damn lazer!
BK: NO! i want to do lost dammit!
MDD: GIVE ME THE-
*just then the gaang appear out of nowhere*
BK: COSPLAYERS!!!!! THEY'VE PASSED OUR DEFENCES!!
MDD: activating anti-cosplayer forcefield!
*a forcefield that repels all fanboys and fangirls appears out of nowhere*
aang: your days of making dumb parodies are over creators! i'm taking you down!
MDD: wow, that cosplayer sounds a lot like the real aang!
katara: he is the real aang stupids! we've broken the fourth wall to give you a piece of our mind!
BK: fourth wall? wow these fanfics are getting worse and worse!
zuko: THIS ISN'T A FANFICTION! we're the real deal!
MDD: *laughing* prove it 'zuko'!
*zuko shoots fire at them, the anti-cosplayer forcefield deflects it*
BK: i don't believe it! the real gaang!
sokka: we want to have a word with you!
toph: what's with all these dumb parodies?! you made me british! BRI-TISH!
MDD: hear us out! we had this cool crossover ray and we wanted to make a good crossover, with something decent, like naruto!
BK: naruto?! lost!
MDD: naruto!
BK: lost!
aang: lolwut? we don't know what these show you speak of are!
MDD: you guys are going back where you came from! now!
katara: or else what?
BK: or else we zap you with the crossover ray and make you mystery inc.
sokka: NOT SCOOBY DOO!!! ANYTHING BUT THAT!!!!
BK: now you have some explaining to do!
MDD: how did you get to the real world?
zuko: several minutes later...
BK: i see.
zuko: wow! that was amazing, all i said was 'several minutes later' and you understood everything!
BK: it's the writer's way of skipping dull parts of the story to get to the interesting bits.
MDD: did you just break the fourth wall?
BK: i did! on no! that means...
MDD/BK: we're fictional!
aang: which means...
gaang: THIS IS A FANFIC!!! NOOOO!!!!
4th wall: come on, let's show this creator a piece of our mind!
*they open a portal into the REAL real world*
tomtitan: i wish i had a girlfriend.
MDD: your days of tyranny are over fanfic creator! i'm taking you down!
tomtitan: o rly?
BK: ya rly!
*they all attack*
tomtitan: mwahahaha! you cannot defeat me! for i am making this fanfic!
aang: he's right, this is all in his imagination!
tomtitan: yes! and if i say... this is a scooby doo crossover, it becomes a scooby doo crossover! several minutes later!
zuko: oh no not that!

villager: you're going to be locked up forever!
hama: and i would've gotten away with it too, if it weren't for those meddling kids!
katara: NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

tomtitan: the end! mwahahahahahahaha!!!!!

*sing to gilligan's island theme tune*
Oh, sit right back, and you'll hear a tale, a tale of a tiny Ship- which started on a pleasure cruise, a tiny little trip-

A storm picked up, and the Ship got lost,
thrown and splashed, and swamped and tossed-
if not for the courage of the little crew, Zutara wud be lost- The Ship got more full and fuller,
with growing numbers of fans though we don't gloat-
as Zuko proved in a few short eps,
that the Zutara Ship could float-

With Katara,....the Avatar, too....the wheel-chair kid, and his friends,....the blind ban-dit, Sokka and of course the man, Zuko.... here, on Zutarian Ship!!