To my knowledge yes. Infact, there is a function whereby once you do the level the an assigned character, you can go back and do it with any unlocked character.
Even if the enviroments aren't huge on PS2, I only ask for free roaming and Jetfire. I saw a newly released character list with Jetfire on it, is this true? That Jetfire's in the game as a playable character?
i just bought an xbox360 for this game well, not just this game, i was gonna buy one anyway, but now it feels slightly more justified.
The PS2 and Wii version is completely different from the PS3/360/PC version. So you won't be getting the same game. The good thing is that it's being done by the guys that did the Armada game.
We don't know if Jetfire is playable yet or not. He is definitely in the game, as we saw him in a cutscene on the 16 min video from G4TV but that doesn't automatically mean he's playable, since Bonecrusher and Brawl were both in the first game but weren't playable. I sure hope he is, along with Sideswipe and the Twins.