Bullethell

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

"How quick can a top-down shooter be before breaking the gameplay?"

BULLETHELL is an experimental, retro-hardcore, barely playable, ultra-fast-paced arena top-down shooter.

With the classic WASD+Mouse controls (UBERMOSH, QUICKERFLAK), the match starts with a duel that may be resolved in the first second. It gets progressively harder with more contestants entering the fight.
It can go endless, but each second is a victory that you can track with your personal best time and rank, scoring "SSS" in 30+ seconds.

Players can expect a hard-boiled gameplay experience with responsive controls, complex enemy AI, isometric pixel art, and awesome original music.

Welcome to BULLETHELL!