Grip Games, the developer behind 5-in-1 Arcade Hits, The Impossible Game and Foosball 2012, are working on a new title for the PS3 and PS Vita: Atomic Ninjas, and will be headed to both consoles later this year. The game is a 2.5D multiplayer platformer with ninjas, where you control super-powered ninjas in frantic online matches against other players.