N+ is a new arcade game that came out on Xbox Live. It was a flash game/downloadable game before that, and I think they made the transition very well. You are this ninja type, but basically just a stick figure. You can only move and jump, but the ways you can jump are pretty amazing. You can jump up walls, jump from wall to wall, slide down walls.. And there are all different types of enemies. You can also play online, with co-op, race, and survival. This is definitely my favorite arcade game. There's a demo for it, you guys should definitely check it out.