Unlock 10 sound collection items with Coins

Turn into Super Sonic

Clear Sonic the Hedgehog 3 & Knuckles in either Anniversary or Classic Mode

Defeat 100 enemies on a single playthrough!

Kill all the Animal Types

Finish all the Garrisons

Find all VHS Tapes

Reach level 10.

Jump Down from 50 Meters

In multiplayer, get gold in any Knitted Knight Trial while carrying another Sackperson.

After saving Darling, enter Combat Mode with a Dragon and Return to Stealth

Collect all trophies in Felix the Cat