Mario World Overrun is completely addicting shooting game fun. Mario World has been overrun by all sorts of crazy enemies. Stop them from destroying your castle. Don't let the enemies overrun your Mario World castle. Buy weapons and special items in the shop. Use the weapons to destroy the oncoming enemies. The game ends once your castle is destroyed and overrun.

Mouse Button- Position where to shoot and click button to shoot.
A and Q keys- Cycle to next or previous weapon.
S and W key- Cycle to next or previous special items.
Space bar- Place a special item.