The trailer features some multiplayer free-for-all action, with the premise being that you need to use the environment to kill your enemies. The trailer also shows of the game's sense of humor, with zombie-ninjas, and a physics system that lends itself to lots of random craziness. Let us know what…

Grip games announced today it will launch Atomic Ninjas, a multiplayer action platformer game for the PS3 and PS Vita. The game will be available exclusively on the PlayStation Store throughout North and South America, Europe and other territories this summer. Atomic Ninjas is a 2.5D multiplayer action game, in…