Click within the applet. Press spacebar to begin the game, or wait a few seconds to view the high score table. Use the cursor keys to move around, and use the spacebar or 'Z' to shoot. You can turn the music on and off by pressing 'M', and you can do the same with the sound effects by pressing 'S'. 'P' pauses/unpauses the game.

A battle has broken out within your computer. Invading microchips, resistors and electric surges are all trying to crash your system! Shoot them all and keep your computer bug free!

If you score enough points, you can enter your name on the All-Time BugBuster high-score table.