Press the arrow keys to move the hero. Press the space the bar to shoot.
If the hero's bullets hit a zombie the zombie is killed.
If the hero kills all the 20 zombies before the hero's strength becomes zero you win the game. The aim of the game is to complete the game in minimum possible time. If the missiles from the zombies hit the hero hero's strength gets reduced by one percent. If the hero's strength becomes zero you lose the game.