Sonic 3D Blast, known as Sonic 3D: Flickies' Island (ソニック３Ｄ フリッキーアイランド, Sonikku Surīdī Furikkī Airando?) in Japan and Europe, is an isometric platform game and the second 3D game in the Sonic the Hedgehog series, after Sonic the Fighters. It was developed in the United Kingdom by Traveller's Tales and published by Sega. Primarily developed as the last Sonic game for the Sega Genesis, it was later ported to the Sega Saturn and Microsoft Windows, and later re-released on many compilations and digital distribution platforms as well.A separate game, titled Sonic Blast, was also released for the Sega Game Gear in the same year. However, much like the Game Gear versions of Sonic the Hedgehog and Sonic the Hedgehog 2, they are similarly titled but decidedly different games.

Sonic 3D: Director's Cut is a hack of Sonic 3D: Flickies' Island made by Jon Burton, founder of Traveller's Tales and the game's original programmer, with the goal of expanding the game with new content to increase replayability and to fix long-standing issues that the game has been criticized for. The project was first announced on Jon Burton's YouTube channel, GameHut, on October 12, 2017, and update videos were uploaded on a basis.A public beta test was released as an expo entry during the 2017 Sonic Hacking Contest for players to try out the game and report bugs or suggest times for the new Time Challenge mode. The finished version was eventually released on December 23, 2017 as an xdelta patch and as a download on the Steam Workshop for owners of Sonic 3D on Steam.

Super Sonic in Sonic 3D is a hack of Sonic 3D: Flickies' Island made by Sik. This hack allows the player to turn into Super Sonic in said game after collecting all sevenChaos Emeralds, mimicking its prequels Sonic 2, Sonic 3 and Sonic & Knuckles. The rules are borrowed from the latter two games, so the player must double jump to transform and also must not have a shield in that moment, besides the basic requirements (having all emeralds and 50 rings).All of Super Sonic's behaviour is implemented: a custom palette, a transformation pose with a fading palette, invincibility (with stars), speed shoes and a music change upon transformation. Rings drain while transformed as well. Super Sonic can still be killed by getting crushed by some falling platforms, however, so he isn't completely immune to death.This hack is based off Sonic 3D: No Flickies, and as such it shares the same gameplay rules.