Full list of all 12 Sonic the Hedgehog 4 - Episode II achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Beat Special Stage 1 after collecting every Ring.
Clear all stages without returning to the World Map.
Collect all Red Star Rings
Defeat all bosses as Super Sonic.
Clear SYLVANIA CASTLE ZONE, Act 1 in one minute or less.
Defeat the final foe and watch the ending.
Defeat Metal Sonic in SKY FORTRESS ZONE, Act 1.
Collect all seven Chaos Emeralds.
Activate the Rolling Combo with Sonic and Tails.
Clear SYLVANIA CASTLE ZONE, Act 1.
Upload a Multiplayer score or time.
Play as Tails 50 times.