The January 2024 IDW Sonic the Hedgehog comic mini series based on Fang the Hunter revolves around him, Bean the Dynamite and Bark the Polar Bear searching for the mysterious “eighth” Chaos Emerald. This is a reference to the 1996 arcade game Sonic the Fighters (Bean and Bark’s debut game), which erroneously featured eight Chaos Emeralds, each one owned by the eight playable characters.

Sonic and Dr. Eggman’s cameos in the 2012 film "Wreck-It Ralph" and its 2018 sequel "Ralph Breaks the Internet" can be attributed to a Sonic the Fighters arcade cabinet being in Litwak’s Arcade. The arcade cabinet in the film uses the title "Sonic Championship", as the game was named this outside of Japan. Despite the game using the classic designs for the characters, Sonic and Eggman are shown in their modern designs inside the gaming world.

Some of the names of the Arcade Shop missions in Lost Judgment which are unlocked through playing Sonic the Fighters are references to aspects of the Sonic franchise.

The missions for beating Sonic, Tails, Knuckles and Amy are all named after their themes from Sonic Adventure or Sonic Adventure 2: Live and Learn, Believe In Myself, Fighting Freak and My Sweet Passion.

The mission for beating Fang the Sniper is titled Knack For Trouble which could be a reference to both Fang's original Western name Nack the Weasel as well as his debut game Sonic the Hedgehog: Triple Trouble.

The mission for beating Bean the Dynamite is titled Mean Bean Machine after the 1993 Sonic-themed Western localization of Puyo Puyo, Dr. Robotnik's Mean Bean Machine. Ironically, Puyo Puyo did not appear in Lost Judgment despite being in it's predecessor, Judgment.

Finally, the mission for beating Espio is titled Chameleon Detective after Espio's role as a detective starting with Sonic Heroes. It could also be a nod to the Lost Judgment's protagonist Yagami being a detective who often needs to don disguises to blend into places.

There are a few unused songs found within the game's data. One is an alternate version of the character select screen (which is used in the options menu in the Sonic Gems Collection port), one is called "Sunset Town" on the official OST yet doesn't make an appearance in the actual game, another is unused and is not found in the OST so it is impossible to tell what it may have been used for, and the final track is named "Hurry Up". Based on the name it sounds like it could have been used for the Death Egg Hanger, but this track goes unused anyway. Strangely enough, this song became the pre-race cinematic music in the Death Egg DLC for Sonic & All-Stars Racing Transformed.

Dr. Robotnik's name is misspelled in the intro as "Dr. Robotonic".

Honey the Cat is based on Honey (AKA Candy) from the game Fighting Vipers. She was planned for the original arcade release of the game, but was eventually scrapped. However, she was later reinserted into the HD remake of the game.