Rez is a rail shooter developed by United Game Artists and published by Sega for the SEGA Dreamcast in 2001. Directed by Tetsuya Mizuguchi, the game pulls players into a wireframe cyberspace where they hunt down a corrupted AI named Eden. Players control a hacker avatar that flies through abstract digital tunnels, locking onto enemies with a reticle and firing energy shots in time with the music. Every action the player takes adds a beat, a synth stab, or a vocal sample to the soundtrack, turning combat into a live performance. The visual style draws from Russian artist Wassily Kandinsky, painting waves of geometric shapes, neon grids, and pulsing color across the screen. This blend of shooting, rhythm, and abstract art gave Rez a reputation as one of the most distinct titles on the Dreamcast, and it remains a touchstone for music-driven game design to this day across many platforms worldwide.
Updated: Jun 22, 2026
Screenshots

1.2 GB · Dreamcast ROMs
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Specifications
| Platform | Dreamcast ROMs |
|---|---|
| Genre | Action |
| File Size | 1.2 GB |
| Release Year | 2001 |
| Developer | United Game Artists |
| Updated | Jun 22, 2026 |
Overview
Rez is a rail shooter developed by United Game Artists and published by Sega for the SEGA Dreamcast in 2001. Directed by Tetsuya Mizuguchi, the game pulls players into a wireframe cyberspace where they hunt down a corrupted AI named Eden. Players control a hacker avatar that flies through abstract digital tunnels, locking onto enemies with a reticle and firing energy shots in time with the music. Every action the player takes adds a beat, a synth stab, or a vocal sample to the soundtrack, turning combat into a live performance. The visual style draws from Russian artist Wassily Kandinsky, painting waves of geometric shapes, neon grids, and pulsing color across the screen. This blend of shooting, rhythm, and abstract art gave Rez a reputation as one of the most distinct titles on the Dreamcast, and it remains a touchstone for music-driven game design to this day across many platforms worldwide.
The game contains five main areas, each tied to a different musical genre and visual palette, with tracks contributed by artists such as Adam Freeland, Ken Ishii, and Coldcut. Players progress through four evolution stages for their avatar, gaining new shields and visual forms as they score hits and clear sections. A score attack mode, a boss rush option, and hidden unlockables reward repeat sessions, while the Trance Mission mode strips away combat for a pure audiovisual trip. Rez supports the Dreamcast Puru Puru Pack, letting the controller vibrate along with the beat for added physical feedback. Boss fights stretch across long sequences with multiple phases, each building toward a musical crescendo that ties gameplay and sound together. The short runtime, roughly four hours per playthrough, suits the arcade style structure and pushes players toward higher scores. Rez stands as a hypnotic, focused experience that treats sight and sound as one shared instrument across every stage.