You know that there's a new cartoon on tv, and the turtles fanbase is largely preteens right? I think this kind of game would work well for that market, Smash Bros is relatively easy to pick up and play. Certainly more so than a turn-based rpg. Besides, didn't Ubisoft already made a Turtles 3d action game for PS2? My nephew had it...poor game for a 6 year old, he couldn't really get very far because of the jumping puzzles and such.