-Only 1 playable map:
Singleplayer,Coop,Controls,Exit buttons working.
-You can buy weapons:
Standing on top of them and pressing E.
-You get money for killing zombies:
for Hitting and Killing(If you are playing Coop the computer randomly choose what player gets the money).
The Submachinegun(Self explanatory) and the Sniper(it goes through zombies).