Collect all 180 Red Rings from all 36 Main Acts to unlock the second and third Sonic Simulator Acts.
Successfully complete all 21 Sonic Simulator Acts in Single Player mode. The options satellite at the main screen will glow and allow you to play as Super Sonic. While playing as Super Sonic, you can collect 50 gold rings and activate the Wisp abilities. Note: Special Wisp abilities will be disabled and the level designs will change. Also, Super Sonic cannot be used in Challenge mode.
Collect 30 Red Rings to unlock your Mii character in the Sonic Simulator game.
Successfully complete the Final Story, and allow the credits to end. A Rainbow Star will appear on the map. Select the Rainbow Star to view the credits again.
Successfully complete a level. When your rank and score appear at the results screen, repeatedly jump and dash through the numbers until they break, and gold rings and extra lives will appear.
At the title screen, press the Analog-stick to change the view.
At the character selection screen in the Sonic Simulator, press Z or C to change his color to blue, red, pink, black, or green. Note: Press L or R when using a GameCube Controller.