Coming soon to iPhone and its cousins, Pirates vs Ninjas vs Zombies vs Pandas, in case your iPhone doesn't have enough zombie-themed games yet. This one seems to be about hurling its namesakes at other players' defenses as living projectiles, presumably in an attempt to knock down walls and take over territory.
Mokalus of Borg
PS - It's not entirely clear from the screenshots.
PPS - And the trailer is still "coming soon".