How Do the Saturn and PlayStation Versions of Dead or Alive Differ?
Dead or Alive reached home players twice, and the two versions are different enough that collectors treat them as different games. The Sega Saturn version came first, in Japan in October 1997, and never left Japan on that system. The PlayStation version followed in March 1998 in Japan, North America, and Europe, and changed the roster, the stages, the engine, and the rules of the ring itself.
Here is the difference, point by point, as documented in the versions themselves and the contemporary record.
THE DIFFERENCES
Point by pointTHE TWO PLAYSTATION COVERS
Both covers on this page are the PlayStation rebuild

WHICH ONE WON?
Critics picked one, its creator picked the otherContemporary reviewers mostly sided with the rebuild. Reviews of the PlayStation version hailed it as even better than the Saturn game, with enhanced graphics and enjoyable new content adding to the replay value, and its scores ran higher: IGN gave it 8.5 of 10 against the Saturn import's coverage, and GameSpot scored the PlayStation version 7.3 of 10 to the Saturn version's 6.8.
Tomonobu Itagaki sided with the conversion. When Tecmo built Dead or Alive Ultimate for the Xbox in 2004, the enhanced version of the first game was based on the Sega Saturn version, described in the record both as his preferred version and his personal favorite, updated with smoother graphics, surround sound, and Xbox Live online play. The PlayStation version supplied the series' future, Bass, Ayane, and the road to Dead or Alive ++. The Saturn version is the one its creator kept.