SONIC THE HEDGEHOG
23 Achievements
1,000
60-80h
Xbox 360
Psychic Soldier
You have Learned all Silver actions.
20
How to unlock the Psychic Soldier achievement in SONIC THE HEDGEHOG - Definitive Guide
You will need to purchase all of Silver's abilities from the store. You should be able to get them all fairly early in the game as there are only a few to purchase.
Once you have the final ability you will be given this achievement.
Once you have the final ability you will be given this achievement.
You need to buy all of Silvers skills from the shops. Silver also has a lot less skills than Sonic and you should be able to get during one time through his story.