Full list of all 15 Sonic Adventure 2 achievements worth 500 gamerscore. It takes around 35-40 hours to unlock all of the achievements in the base game.
The base game contains 12 achievements worth 400 Gamerscore, and there is 1 DLC pack containing 3 achievements worth 100 Gamerscore.
My hero, you have successfully saved the world!
You have cleared our DARK story.
You have cleared our HERO story.
Welcome to the Chao World!
Hello, rookie, welcome to the Sonic World!
Raise all 5 properties of any one Chao up to level 10.
Clear all 3 modes in Boss Attack Mode.
Win all A RANKs (5 A RANKs) in any one stage in story mode.
Raise a HERO Chao and a DARK Chao with your hero and dark characters respectively.
Win NO.1 in expert level in kart race.
Unlock 90 emblems.
Win A RANK in all stages in Story Mode.
Beat all your enemies in Super Level in Chao Karate 1P mode.
Play all level 4 stages in Action Race, Treasure Hunter and Shooting Battle.
Unlock all 180 emblems.