Sonic the Fighters (in the modern Sonic style, unlike the original StF)
- Sonic the Hedgehog
- Tails Prower
- Knuckles the Echidna
- Amy Rose
- Shadow the Hedgehog (He wasn't in the original StF, but he's the second most popular Sonic character and I just needed one more to match Virtua Fighter and Fighting Vipers)
- Espio the Chameleon
- Dr. Eggman (in a mech resembling this one)
- Metal Sonic
- Fang the Sniper
- Honey the Cat
Streets of Rage
- Axel Stone
- Blaze Fielding
Shinobi
Shenmue
Yakuza
SEGA Saturn
Alex Kidd
Last Bronx
- Yusaku Kudo (a forgotten 3D fighting game on SEGA Saturn)
Eternal Champions (a cult classic Genesis fighting game)
Virtua Quest (a Virtua Fighter spinoff on PS2 and GameCube)
Golden Axe
Heavyweight Champ (the first ever fighting game, which SEGA Happens to have made)
Persona
- Mitsuru Kirijo
- Yu Narukami
- Joker
Bayonetta (if this means the game would have to be Switch exclusive, then so be it. But considering Bayonetta 1's recent PS4 release..... i kind of doubt it)
Dead or Alive (Returning the favor for the Virtua Fighter characters in DoA5
- Kasumi
- Ryu Hayabusa
- Leifang
- Helena Douglas
Pepsi Co.
- Pepsiman (he was in the Japanese release of Fighting Vipers and the only one not to make it into Megamix)