Up to four players (one on keyboard, the other three on gamepads) can team up to make their way through all 30 levels of the campaign.
Retrobooster is a 2.5D survival shooter and cave-flyer, focusing on skill-based flying and enemy blasting. Pilot your rusty thrust ship through bizarre worlds littered with vicious enemies and diabolical traps. Each new level takes you farther from home and, ultimately, into the deadliest reaches of the galaxy. Retrobooster also has speed-flying challenges, various weapons, puzzles, juicy monsters, a warped sense of humor, and a healthy dose of bullet hell action. Survive to the end if you can, and use your awesome new flying skills to replay for high scores.