Shoot zombies with the mouse and arrow keys! After a few zombies spawn, now you get to choose an upgrade card! That buff or rdebuff is permanently added to your character. You can have only 1 Skill though, which the previous skill is scrapped when picking two. Spend Action Points to redraw 1 card (Burn) or keep to the next cards draw (Freeze).
Press P for a secret difficulty modifier!!!!
