Shoot zombies in all levels and go to next level. Buy health updates.
Grenades thrown by attacking zombies hit the base, reducing its strength by a certain percentage. When the strength becomes zero the game ends.
At the end of every level:
The Hero can buy gun updates having higher power.
He can also buy updates for lesser % strength loss.
Drag the mouse to move the cursor.
Keep the mouse pressed to shoot.
Release the mouse to stop shooting.
If the game lags too much release the mouse and press again.
-Hit a zombie to immobilize it, and stop throwing grenades.
-Hit the zombie repeatedly number of times according to the level being played to kill it, earn points and money.