Fight wave after wave of enemies to earn money for upgrades. There's plenty of new weapons and other objects to buy... but first, you have to purchase the mouse pointer and play button.
InstructionsArrow keys move around, click to shoot.
Upgrade Completer is an online action game developed by Armor Games, and has been played 56880 times on Bubblebox.com.
67% of people have voted thumbs up
UPGRADE COMPLETER WALKTHROUGH VIDEO