Games like Sonic Arena

Sonic StrikerZ

Welcome to Sonic StrikerZ! Using 2D Fighter Maker 2022, experience 1v1s, 2v2s, 3v3s and even 4v4 2D chaotic fights across as of right now in this version 27 Zones with 11 characters, including a story/campaign mode with bosses and online! How you use your power is up to you... Do not forget your dreams...

Sonic Battle 4: The Call to Chaos

Super Sonic Knockout

JO-Rush

Ultimate Sonic Heroes Fighters

Dr. Robotnik's Badnik Quarrel

Dr. Robotnik's Badnik Quarrel is an ARENA BRAWLER in which up to eight teams battle against each other with characters from the Sonic The Hedgehog series. Each team is given four 'emeralds' that represent badniks that will fight in an arena during each round. You must win rounds to score points for your team, which are used to purchase upgrades or randomize your badniks so that they have higher strength or health stats, and sometimes gain special fighting abilities that give them a distinct advantage over other monsters in the arena. There are also special mini games between rounds where players on each team must fight each other.

Super Sonic Battle

Full fledged Sonic Fighting game - Super Sonic Battle. Developed to celebrate the 20th Anniversary of the GBA title Sonic Battle!

Daris Venture

Daris Venture is a half-Saturn/Advance-style fan-made game that will tell you an alternate history of Mobius that ended not in the best way for the Robotnik Empire.

Sonic Smash Brothers

A flash-based Sonic fighting fangame based on Super Smash Bros. franchise. It has some characters from Sonic franchise and a campagin mode.

AzuFight: Taisen Shiyo

AzuFight: Taisen Shiyo is a doujin fighting game based on the Azumanga Daioh anime and manga series. Not to be confused with Azumanga The Fighter T-Style, though possibly meant to serve as a sequel or expansion.