shoot the zombies by hovering your cursor over them, buy stufz from da shop, and survive. Base zombe- nothing special Baked Zombe- Like base but faster Tough Zombe- Slow but once killed, it degrades into a Baked Zombe. Bulk Zombe- Really slow but once killed, it degrades into a Tough Zombe. King Zombie- Slowest but degrades into 4 Bulk Zombes once killed.