- Christmas Rushed: The Sega Saturn port was scrambled together in four months to make up for the delay and cancellation of Sonic X-treme. All things considered, it ended up being a surprisingly good port — that is, if you can get past the load times.
- Keep Circulating the Tapes: While the original Sega Genesis version has been emulated many times, neither the Saturn nor PC ports have been re-released.
- Late Export for You: The game didn't come to Japan until the Saturn version was released a little under a year after the Sega Dreamcast was released in Japan, on the same day Sonic Adventure International was released.
- Market-Based Title: The standard NTSC version is known as Sonic 3D Blast and the PAL version is known as Sonic 3D: Flickies' Island, but Japan used both, the latter for the physical Saturn release, and the former for the Mega Drive edition via Sonic Mega Collection and the Wii Virtual Console. As Traveller's Tales founder Jon Burton pointed out in a video, the game's regional title is coded to detect if it is playing on an NTSC or PAL Mega Drive. As such, North American and Japanese machines will always display the title as Sonic 3D Blast, while PAL machines will display Sonic 3D: Flickies' Island. The same holds true for the Saturn release, only with Japan flipping to Flickies' Island rather than Blast. The PC version, however, is tied to whatever market it was sold in at the time of release, with North America having Blast, and Europe and Taiwan having Flickies' Island. There were plans for the PC version to detect region coding, as the title screens can be found on the disc displaying both titles note
- What Could Have Been:
- Leaked pre-release builds of the Genesis version contain at least two scrapped music tracks, one of which sounds like an early Special Stage or Bonus Stage and the other either another boss theme or a test demo for Spring Stadium Zone. The latter was eventually reused as the initial boss theme for Sonic the Hedgehog 4: Episode I.
- As shown in a video posted by Traveller's Tales founder Jon Burton, a split-screen mode was considered to be included in the original Genesis version, and was included in a very early build (shown in the video), but the idea was eventually dropped.
- In a video posted by Burton, some new information was revealed:
- The gameplay was meant to better replicate the fast paced action of the previous 2D Sonic games, though slowing down Sonic became a requirement due to scrolling limitations and making many gameplay hazards hard to anticipate.
- There is another scrapped music track that was cut due to running out of space in the cartridge, but was later reused as "Pleasure Castle ...for Twinkle Park" in Sonic Adventure. Eventually, Burton found and released a demo version.
- Green Grove Zone was originally known as Green Alley Zone. Along with The Final Fight known as The Final Boss in a prototype (and the Saturn version), this suggests that the rest of the zones did not initially have Alliterative Names.
- Working Title: Sonic Spindrift.
Trivia / Sonic 3D: Flickies' Island