Galax is a popular clone of the classic arcade game Space Invaders remade for Palm OS.
Note that Galax supports both grayscale and color displays, but not high-resolution ones.
Galax is shareware, but unlike other apps, it does not use a serial code system for registration. Instead, unlocked versions were distributed privately to users who purchased a registered copy.
A patched copy of the latest version of the game has been provided below to unlock all features. Other versions will run in a locked demo state.