SONIC THE HEDGEHOG
23 Achievements
1,000
60-80h
Xbox 360
Shadow Episode: Completed
You have Cleared all Shadow ACT Missions.
40
How to unlock the Shadow Episode: Completed achievement in SONIC THE HEDGEHOG - Definitive Guide
Just complete every ACT mission on HARD mode. Unlocked after beating the game normally and accessed by looking under the mission select tab.
You don't have to replay bosses. Hard mode just changes up the enemies, adds more traps, moves switches around and sometimes takes away springs.
You don't have to replay bosses. Hard mode just changes up the enemies, adds more traps, moves switches around and sometimes takes away springs.
For this achievement you need to clear all of Shadows act missions on hard difficulty. In order to play on hard difficulty you need to go to mission select, and when you choose a mission you can pick what difficulty, normal or hard.