Build turrets and floor traps to keep the shadow creeps from reaching the exit portal. When all else fails use your own various weapons to take them out!
Build defense structures, buy your weapons, press start and fight the creeps to prevent them from reaching the exit.
A and S to move, W to jump
R to reload (when you have weapons)
Mouse to select items or shoot. Mousewheel to scroll weapons.
P to pause Keys can be remapped in the pause menu.
