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