Coolness #1

Bugs

There are four well-known bugs in Galaga:

* In early revisions of the game, it is possible to cause all enemies in the game to stop firing at the player by destroying all but two enemies in the first level and then dodging their shots for about fifteen minutes.

* Some revisions would also allow the player to control the ship during its attract mode, which can lead to unexpected results depending on the version of the software. Some machines simply continue their attract mode, while others may occasionally crash and reset, and later revisions may report a stuck switch.

* The game "wraps around" from Stage 255 to Stage 0, due to integer overflow. Because the game was not designed to handle this condition, it effectively locks up on Stage 0 due to there being no enemies. At this point, the game must be reset.

* Player 1's score can only display up to six digits, and thus wraps around at 999,990. Player 2's score, however, can display seven digits and does not wrap around, leading to some experienced players preferring to play as Player 2.