Zombus

Zombus is the prove that for great fun you need only a school bus and hordes of zombies. The city is flooded by classic undead bodies and the only hope is to jump on a bus, drive over all the hungry things and reach the safe zone. All is very easy in the beginning but further in the game, the zombies change and their number rapidly increases. Between the levels, you can upgrade the bus so soon you get a fort on wheels with nice weapons. The game has all what you need - great gameplay, graphics and music.