Quoted from JustLikeMe:I don't want a game my wife will find excessively frustrating as that will just put her off.
TMNT can be hard to find the shots at times, but I think DP can sometimes be that way as well. Both are great when you're on your A-game. TMNT does have the Coop mode, plus you can handicap a game vs. your wife where it can be 2 vs. 1, or 3 vs. 1 so she'd have a greater chance to beat you.