i think that at the end of the 3 seasons (Total Drama Island/Action/Musical), they should make a game. it could be the 'Best Game Ever', where you are a new intern and you help set up then test challenges. in the game, you could:
-explore the island/studio lot/where ever season 3 takes place, and talk with every contest, Chris, and Chef
-change the appearance of your player (instead of for instance 3 of the same shirt but in different colors, it would be only one 1 shirt but with color options)
-change your weapon (you get a new weapon after every 5 challenges, you can use any weapon that you unlock)
-fight enemies like bears and other things
-it would be 3-D
-you can make alliances and get stuff for doing favors
-have the ability to run and jump
comment if you have any more ideas for it