Ultra X Weapons / Ultra Keibitai (GAMEST review build) is a specific version of the game mentioned above, likely a test build reviewed by the GAMEST magazine. The presence of a review build implies that it was either sent to gaming journalists for analysis prior to a wider release, or circulated as a test version for internal use. The exact differences between this build and a retail version are unknown, as this would involve analysis of both. It provides a glimpse into the game's development cycle.

Ultra X Weapons / Ultra Keibitai (GAMEST review build)

Ufo Senshi Yohko Chan (MC-8123, 317-0064)

Ultimate Ecology (931203 Japan)

Ultimate Mortal Kombat 3 (rev 1.2)

Ultra Balloon

Ultra Toukon Densetsu (Japan)

Ultraman Club - Tatakae! Ultraman Kyoudai!!

Uncle Poo

Undercover Cops (Alpha Renewal Version)

Undercover Cops (Japan)

Undercover Cops (US)

Undercover Cops (World)

UniWar S