A portion of a NewsOK interview with Writer Paul Benjamin...

NOK: What types of changes have to be made when creating the Wii/PS2 version of a game?

PB: This can vary greatly depending on the project. In this case, the Wii/PS2 version was being developed by a different studio from the Xbox 360/PS3/PC version. Though both versions shared cinematics and followed similar storylines, many other elements of the game were taken in different directions. For example, because the Wii tends to be owned by more casual gamers and has a large family following, the Wii version is much more family-friendly. Where the Uncaged Edition on the other consoles embraces the extreme violence of the Wolverine character, the Wii/PS2 version adopts a feel that is more in line with Wolverine from the three X-Men movies. There’s still plenty of fighting, but there’s almost no actual bloodshed portrayed in the combat.

Also, the Wii team took the unique motion sensitive Wii controls into account when making the game. You use the Wii controller in a very kinetic fashion to throw doors open, for example, and to lunge across the room at an opponent in a way that is unique to the Wii. Because this version was developed separately with these considerations in mind, many of the story details end up being different as well. The game has to be fun first and foremost, so the story was tweaked and revised to fit the gameplay involved. Overall things are the same, but one console’s version may have more levels set in one location than on another console, creating differences in where the story goes and how much we see of one character or another.

Full interview here