You and your friends are stuck in a small town and your supplies running out. The radio transmitter on the roof of your building is your only hope for salvation, but it is still silent. The zombies outside seem to be attracted to the signal... use all your firepower to stop them!
Buy and upgrade new weapons and level up seven skills (three skills for your A.I. controlled comrades).
Run: [A],[D] or [LEFT / RIGHT ARROWS]
Jump: [W] or [UP ARROW]
Use doors/stairs: [S] or [DOWN ARROW]
Select weapons:  - 
Next/previous weapon: [Q], [E]
Order comrades to change positions: [F] (press repeatedly to cycle positions)