Sonic the Hedgehog (1991) achievements

2.48%
Blue Phantom
You have Learned all Sonic actions.
2.48%
Soleanna's blue wind
You have Achieved Rank S on all Sonic TOWN Missions.
2.98%
Sonic Episode: Completed
You have Cleared all Sonic ACT Missions.
3.47%
Elite Agent
You have Cleared all Shadow TOWN Missions.
3.97%
Soleanna's Hero
You have Cleared all Sonic TOWN Missions.
8.44%
Ultimate Life Form
You have Learned all Shadow actions.
8.93%
One to reach the end
You have Cleared Last Episode.
9.93%
Shadow Episode: Cleared
You have Cleared Shadow Episode.
10.17%
Silver Episode: Cleared
You have Cleared Silver Episode.
10.42%
Fast Win
Beat the game in under 40 minutes.
11.17%
Psychic Soldier
You have Learned all Silver actions.
13.15%
Sonic Episode: Cleared
You have Cleared Sonic Episode.