"Dudes vs. Zombies" Game

It's a wild pixel action about a bunch of dudes against a bunch of zombies. No quests on multiple levels, no unnecessary storylines - just slash and bang, guns and crowds of undead. Overpower enemies, collect coins and unlock one of 9 heroes: pyromaniac, knife master, dude with a AK, miner, dude with a stick, dude with a saw and more.