Left+Right - move your ship Space - fire Your goal is to defeat all enemies before the time limit. The time limit decreases every round. P powerups increase your fire rate, S powerups increase your speed, and T powerups increase your time limit by 2 seconds. You can collect each up to 4 times, except T powerups which drop infinitely.
A simple score-attack shoot 'em up inspired (obviously) by Galaga, but also by many of the ZX Spectrum's quirks. Sound effects and graphics ripped mostly from the arcade version of Galaga, but some might be from the NES version. Trust me, the black boxes outlining sprites are intentional.