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.
Defeat all bosses as Super Sonic.
Clear all stages without returning to the World Map.
Defeat Metal Sonic in SKY FORTRESS ZONE, Act 1.
Collect all Red Star Rings
Defeat the final foe and watch the ending.
Play as Tails 50 times.
Upload a Multiplayer score or time.
Clear SYLVANIA CASTLE ZONE, Act 1 in one minute or less.
Collect all seven Chaos Emeralds.
Activate the Rolling Combo with Sonic and Tails.
Beat Special Stage 1 after collecting every Ring.
Clear SYLVANIA CASTLE ZONE, Act 1.