The game starts off with Sonic running around in Green Hill Zone with Tails and Knuckles. A strange light starts to emit from somewhere. A large explosion erupts, lighty damaging green hill. A mysterious figure is shown and teleports away, causing Sonic and his friends to chase after him. When they reach the spot, they see Eggman, beaten up and tired on the floor. With the help of Eggman, Sonic, Tails, Knuckles and his friends set out to stop the mysterious figure.
- Sonic The Hedgehog
- Miles "Tails" Prower
- Kuckles The Echinda
- Cream The Rabbit
- Amy Rose
- Dr. Eggman
- Shadow The Hedgehog
- Blaze The Cat
- Team Chaotix
- Silver The Hedgehog
- Big The Cat
Playstation 3, Wii U, 3DS and Xbox Stages
World 1 - Mix Up
Green Hill Zone
One of the easiest levels in the game. A warp hole has been added to the level, which makes any character transport into the classic genesis green hill zone.
The first stage in SADX. This level is remastered. Instead of a whale chasing you, you ride on a whale and fight a mini boss.
Sky Chase Zone
Same level as SADX but instead of a plane, you use Shadow to destroy enemies with Chaos Spear. The level gets harder and harder as you defeat enemies.
In this level, you go through the water filled place. Near the end of the stage, you have to run away from a raging flood
Scrap Brain Zone
The last level of Sonic The Hedgehog. This level adds a extra boss that you have to defeat before you fight the actual boss. When you beat this level, you unlock Classic Sonic. This level reveals that Eggman Nega is the mysterious figure.
World 2 - First Levels
Neo Green Hill Zone
The first level in Sonic Advance remastered. Even though this is the first level of World 2, you still fight the Egg Hammer boss, although Eggman does not control it, Eggman Nega does.
The first level in Sonic Heroes. Same stage with new areas added. New enemies were also added to the level also.
Emerald Hill Zone
The first level in Sonic The Hedgehog 2. Same level and no changes made except the 3D front view.
The first level of Sonic Advance 3. Same level and no changes made except the 3D front view.
The last level of Sonic Advance 3. Same level and no changes made except the 3D front view
World 3 - Sky Levels
Flying Battery Zone
The second zone of Sonic and Knuckles. News types of enemies and the level adds an Electric Wisp, which makes Sonic or anyone able to cause electric explosions.
The fifth zone in Sonic Advance 2. This level is extremely hard due to the complexity of routes that you can go through to get to the goal.
Sky Chase 2
Act 2 of Sky Chase. This level adds a swarm of enemies that you have to defeat.
Sky Sanctuary Zone
One of the levels in Sonic Generations and Sonic The Hedgehog 3. The level is more brighter and the platforms break more.
The last level of Sonic Heroes. This level has to do with a lot of jumping on ships to get to the goal.
World 4 - Elements
A level in Sonic 06. No changes made.
The second zone in Sonic the Hedgehog 3. New enemies and 3D front view.
Ice Cap Zone
A zone in Sonic and Knuckles. Level is more brighter and new enemies.
The fourth zone in Sonic Advance. Level s more brighter and new enemies.
An action stage zone in Sonic DX. This level has more hazards and more tornadoes.
World 5 - The Final Battle
This world only has 2 levels
Chaos Emerald Hunt
This level, you use your Emerald Radar to go through 7 specific stages to find a chaos emerald. The radar will start to beep once you are close
This level is the final boss.
World 1 - Giant Scrap Brain/Sonic The Hedgehog Final Boss
Before you fight the boss, you fight a giant brain robot. Just hit his head 8 times. Then you fight the Sonic the hedgehog 1 final boss
World 2 - Egg Hammer
The first boss in Sonic Advance. Just keep using your homing attack and he'll be defeated
World 2 - Gemerl
This is a rival battle. Gemerl will shoot lasers, missiles, and other objects at you until he overheats. Home attack him when he overheats
World 3 - Egg Emperor
The final boss for Final Fortress. When he smashes his hand on the ground, run up his hand and hit his head. Do this 9 times to beat him
World 4 - Solaris Phase 2, Iblis, and Perfect Chaos
The final bosses of Sonic 06 and Sonic DX. First, you need to boost to Perfect chaos and go through his body and hit him. You need to do this two times. Perfect Chaos will explode. Then you fight Iblis. He'll shoot some fire balls at you. Hit the fire balls with your aerial deflect to bounce it back at him. Do this 6 times. Then you fight Solaris. He'll use the powers of Iblis and Perfect Chaos. Just keep dodging them until he weakens. Hit him once and he'll be defeated
World 5 - Sega
Project Sega is a mixture of every single boss in Sonic controlled by Eggman Nega. In this stage, you play as Super Sonic. He'll shoot anything at you. If you know sonic well, you'll know what he's shooting at you. When he unleashes his Mega Laser, press L2 to absorb it (Y for Xbox and Wii U) and shoot it back. When you do this 6 times, he'll go crazy and shoot everything all at once. Do your best do dodge all of this. When he's done, boost to him and he'll explode