This is the definitive sequel to the SFU trilogy. SFU1 and SFU2 can be found on GameJolt.

After the events of SFU2, Darkor seems to be laid to rest... that is until Eggman makes another stop at Sapphire Citadel Zone, where he discovers a treasure he overlooked. The Dream Topaz. With its power, he can use it to warp reality, and make his twisted visions come true! But he doesn't know how to use it yet. He returns to the ruins of Thunder Deck Zone, to find that Darkor wasn't truly defeated! Darkor tries to attack Eggman, but the Dream Topaz shines, putting Darkor in his place. Eggman concocts a plan... one that not even Sonic will be able to stop!


SONIC'S STORY

All the while, Sonic is taking it easy in a place known as The Diamond Isles. Sonic is busy taking a breather, after having defeated Darkor's primordial form back at Thunder Deck Zone. Just then, he sees the Eggmobile fly by! Eggman's up to no good again, and it's up to Sonic to stop him!


SHADOW'S STORY

After Shadow's defeat at the hands of Sonic in VeloCity Zone, he was thinking about what to do next. Suddenly, the world starts warping around him! He ends up on The Diamond Isles, in a desert. Something felt... wrong with the energy he sensed. He decides to move forward to find out what's going on, following a trail of dark mist.


CONTROLS

Arrows - Move

Z - Jump

Down/Z - Spindash