Unlockable: Jak 3 Visit the Secrets Shop. Then select the Scan for Secret Characters option. Have Jak 3 saved on your memory card you're using and this should unlock the character.
Unlockable: Sig Win the Spargus City Death Race.
Unlockable: Jak 2 Visit the Secrets Shop. Then select the Scan for Secret Characters option. Have Jak 2 saved on your memory card you're using and this should unlock the character.
Unlockable: UR-86 Win the Kras City Qualifier.
Unlockable: Jak 3 Visit the Secrets Shop. Then select the Scan for Secret Characters option. Have Jak 3 saved on your memory card you're using and this should unlock the character.
Save File Bonus Daxtermobile Get a PSP save file for Daxter and a save file for Jak X hook it up to your PS2 and go to secrets and unlock the Daxtermobile. (Unverified) Submitted by John Carter (gkmori)
Unlockable: Sig Win the Spargus City Death Race. Unlockable: UR-86 Win the Kras City Qualifier.
Save File Bonus: Jak Visit the Secrets Shop. Then select the Scan for Secret Characters option. Have Jak and Daxter saved on your memory card you're using and this should unlock the character. (Unverified).
Unlockable: Jak 2 Visit the Secrets Shop. Then select the Scan for Secret Characters option. Have Jak 2 saved on your memory card you're using and this should unlock the character.
Save File Bonus: Ratchet First put in a memory card with a Ratchet: Deadlocked save on it and visit the Secrets Shop. Select Scan for Secret characters. You just unlocked Ratchet as a playable character in Exhibition Mode! (Unverified).
Unlockable: Jak from Jak and Daxrer Visit the Secrets Shop. Then select the Scan for Secret Characters option. Have Jak and Daxter saved on your memory card you're using and this should unlock the character.