I am not sure if this one is a game or not but I would be one of the, Lego Ninjas which you can see on the advertes. I mean how awsome would it be to jump around and kill skeleton's all day with nunchucks and swords?!
Honestly, none because I can't trust people playing as me o_O Ex. Random kid No.1 "Hey, why don't you jump off that cliff (in the game)!" Random Kid No.2 "Okay, Random Kid No.1!"