Holosseum (ホロシアム) is a 1992 fighting arcade game developed and published by Sega. The name is a cross between holography and colosseum, due to it being a fighting game created exclusively for Sega's hi-tech hologram theater cabinet, and is the second and last game created for it after Time Traveler. It was created during the fighting game trend of the 1990s that began with Capcom's Street Fighter II.
Holosseum plays similarly to other 2D versus fighting games during its release, which the player's character fights against his or her opponent in best two-out-of-three matches in a single player tournament mode with the computer or against another human player. The player has a character roster of four selectable fighters to choose from, each with their own fighting style and special techniques. Unlike most characters in Street Fighter II, these four characters lack fictional moves. In one player mode, after selecting a character, the arcade randomly selects an opponent. After the player knocks out the other three characters, the player will fight against the same character the player controls, followed by numerous extra fights against all four opponents randomly.
- Dave (Karate Shihan)
- Professor Chen (Chinese Wushu Master)
- Somchay Dompayagen (Muai-Thai Warrior)
- Jack Garrison (Self-Taught Martial Arts Expert)