| Achievement | Points |
|---|---|
 This is Where Simplified Chaos Begins Unlock Sound Test, allowing you to play any stage at any time (in-game slow mo when paused is not allowed unless stated) |
1 |
 Wait, Act 1 Is Part of Act 2? Always Has Been Return to the earliest part of Angel Island Zone's act 1 during act 2, no Debug Mode |
3 |
 Who's Laughing Now? Reach the one who chuckles at the end of Angel Island Zone act 2, no Debug Mode |
4 |
 Come Up Here and Fight Me! Get softlocked above Hydrocity Zone's act 1 miniboss, no Debug Mode |
5 |
 Ceiling is Believing In Hydrocity Zone act 2, warp from the left side of the stage to the right as Knuckles, no Debug Mode |
10 |
 What Do You Mean This Duo was Introduced in A.I.R.? Reach and defeat Sonic and Tails' Marble Garden Zone act 2 boss as Knuckles, no Debug Mode. The trigger icon should appear during the fight and when near the last checkpoint |
10 |
 The Teleporter is for Echidnas Only Reach the teleporter in Carnival Night Zone act 2 as anyone besides Knuckles, no Debug Mode |
10 |
 Bright Lights, Colors All Around Reach and defeat Knuckles' Icecap Zone act 1 boss as anyone besides Knuckles, no Debug Mode |
5 |
 The Icecaps Before Dawn Reach and defeat Sonic and Tails' Icecap Zone act 1 boss as Knuckles, no Debug Mode |
5 |
 Like Being in a Freezer Get shoved into the ceiling by an ice crusher and live in Icecap Zone act 2, no Debug Mode |
3 |
 Zipping Into the Basement Reach and defeat Knuckles' Launch Base Zone act 1 boss as anyone besides Knuckles, no Debug Mode but in-game slow mo is allowed |
10 |
 How'd the Death Egg Return!? Reach and defeat Sonic and Tails' Launch Base Zone act 2 bosses as Knuckles, no Debug Mode |
10 |
 Floating Holographic Rings As Tails in Flying Battery Zone act 1, fly above the three rows of rings in the sky with an electric shield without collecting any of them, no Debug Mode |
5 |
 Getting Buried in an Exotic Tomb Go into the ceiling thanks to a sand pillar in Sandopolis Zone act 2 and live, no Debug Mode |
2 |
 I Choose When I Die! In Death Egg Zone act 2, survive falling into a pit... provided you don't move or do anything (stay there for 4 seconds), no Debug Mode |
5 |
 This is Where the True Chaos Begins Unlock Debug Mode, allowing you to play any stage as any character |
1 |
 More Than Enough Bling for a Hedgehog Cause your ring count to go above the maximum of 999, Debug Mode allowed |
3 |
 They Really Are the Fastest Things Alive Zip from the far left side of Carnival Night Zone act 2 to the right, Debug Mode allowed |
4 |
 Red Echidnas Can't Jump Clear Doomsday Zone act 2 as Knuckles. Unlock Debug Mode to access the stage as Knuckles, but don't activate it by holding A+Start on the level select screen |
10 |
 There and Back Again, a Hedgehog's Tale Return to Angel Island Zone from Hidden Palace Zone, Debug Mode allowed |
5 |
 Facing an Identity Crisis Cause the game to let you use the glitched character, Blue Knuckles, and enter a stage, Debug Mode allowed |
10 |
 Well, He Did Have Egg in his Name Defeat Dr. Robotnik/Eggman in Hidden Palace Zone, Debug Mode allowed |
5 |
 As If One Mecha Wasn't Bad Enough... Battle three Mecha Sonics as Knuckles in Sky Sanctuary Zone, Debug Mode allowed for setup only (See comments) |
25 |
 The Emerald Guardian's Perfect Dodging Defeat the three Mecha Sonics without getting hit as Knuckles in Sky Sanctuary Zone, Debug Mode allowed for setup only (See comments) |
50 |
 Lock-Off the Lock-On Cause the game to revert back to Sonic & Knuckles standalone, Debug Mode allowed |
10 |
 The Hill's Mushrooms Kicked In As anyone besides Knuckles, cause the color palette to change for Mushroom Hill Zone act 1's background, Debug Mode and in-game slow mo allowed |
25 |
 Bossing Around as a Bonus (Stage) As Tails, beat a boss in the vertical orb bonus stage, Debug Mode allowed |
25 |
 No Way! No Way! No Way! No Way? Access Blue Sphere from Sandopolis Zone act 1, Debug Mode allowed |
25 |
 Am I Even Playing Sonic 3 Anymore? Clear stage 058907237 of Blue Sphere with a perfect |
10 |