Sonic Adventure 8/Unlockables


 * To unlock E.T., you'll need to play the game for 10 hours straight, and jump 10,000 times. He will then replace Yacker. He makes Sonic slower so he is easier to control, and also makes him loose rings every second so he isn't carrying too much.
 * To unlock Nina (from Nina Needs to Go), you'll need to play the game for 1 hours straight, and jump 5 times. She will then replace Bonnie (from Pokemon). She makes Sonic slower so he is easier to control, and also makes him loose rings every second so he isn't carrying too much.