- Dummied Out: The known leaked beta of the game has unused sprites of an imprisoned Vector The Crocodile and Sonic's other friends from back when he was part of a band. They just didn't have any luck at all...
- Hey, It's That Sound!: Several tracks from the game were recycled in other works.
- The title theme was repurposed and arranged for the SING!! SEGA Game Music album that when inserted in a Sega CD lets the player play Teddy Boy Blues.
- The track that plays from level 40 is the Get Blue Spheres theme, three years before Sonic 3. Fridge Brilliance kicks in when one realizes both games involve blue, red and yellow spheres and tracing lines around groups of spheres to clear them. There's even an alternate version with a different intro that plays on level 90.
- Track 83 was reused in Chou Kyuukai Miracle Nine as the "Final Results" music.
- Track 85 and 86 were used in the japanese Sega Channel.
- Keep Circulating the Tapes: SegaSonic Bros was never released and never acknowledged by Sega. Only one prototype existed in the hands of a private collector until the end of 2018, which saw the game's ROM receiving a playable dump in MAME. Even then, it wasn't the original ROM but instead one that was modified to work on a multi-game arcade board. The circumstances of the leak are a subject of controversy among the emulation community, and support for the game is only included on special versions of MAME (such as HBMAME) due to the dump being modified and thus, not considered genuine.
- No Export for You: The game's public testing period which deemed it unsuccessful was only in Japan, giving the game no Western exposure until the game's prototype emerged in early 2016; and it wouldn't be until December two years later until it was dumped and released online.
- What Could Have Been: Another curiosity about the game is that its internal code suggests it was originally designed for the Sega Genesis. One programmer did port the game over to the Genesis sometime after the ROM got leaked.
Trivia / SegaSonic Bros.