Here is the full list of all 12 Sonic the Hedgehog 4: Episode II trophies - there are 8 bronze, 3 silver and 1 gold.
Defeat the final foe after collecting every Red Star Ring.
Clear all stages without returning to the World Map.
Defeat all bosses as Super Sonic.
Play as Tails 50 times.
Beat Special Stage 1 after collecting every Ring.
Defeat Metal Sonic in SKY FORTRESS ZONE, Act 1.
Defeat the final foe and watch the ending.
Collect all seven Chaos Emeralds.
Clear SYLVANIA CASTLE ZONE, Act 1 in one minute or less.
Upload a Multiplayer score or time.
Activate the Rolling Combo with Sonic and Tails.
Clear SYLVANIA CASTLE ZONE, Act 1.