Galaxa is a simple space shooter game that can be played on Android devices. The game was created in just two days for the Charity Game Jam II event, with the benefits going to the American Society for the Prevention of Cruelty to Animals (ASPCA). The game's graphics are minimalistic but charming, with colorful and pixelated designs that add to the game's retro feel.

The gameplay is smooth and intuitive, with players controlling a spaceship that must navigate through an asteroid field while shooting down enemy ships. The game is easy to pick up, with no complicated mechanics to learn, making it perfect for a quick gaming session on the go. The game's controls are responsive, and the difficulty level is just right, providing a fun and challenging experience without being frustrating.

Overall, Galaxa is a fun and entertaining space shooter game that is perfect for gamers who enjoy quick and easy games. While the game's graphics may not be the most advanced, they add to the game's retro charm, making it a game that is worth checking out.