Space Monster - 2D shooter is a free arcade game developed by Dalenryder Media for Android 9.0. The game's objective is to destroy all the monsters that are trying to invade your planet. You are alone in space, and you have to use your lasers to eliminate them. However, you must avoid colliding with them or being hit by their lasers.

The game is controlled by tilting your device to move your character, who will shoot on its own. The graphics are simple yet effective, with a retro feel that will appeal to nostalgic gamers. The sound effects are also well done, adding to the overall experience.

Overall, Space Monster - 2D shooter is a fun and addictive game that is easy to pick up and play. It's perfect for those who enjoy arcade-style games and want to pass the time. Although it lacks advanced features and levels, it's a great game to play on the go or during short breaks.