A game inspired by the arcade game classic Space Invaders. Fend off wave after wave of alien invaders. Can be controlled via keyboard, trackball, touchscreen and/or external USB/bluetooth controller.
Uses global leaderboards where you can compare your highscore to that of other players, and allows challenge games (requires Android 2.2 or higher).
Ad-supported version. App permissions required for ad retrieval. In-app purchase can be used to disable all ads.