In Jak II, secrets are unlocked as you progress through the game, they are not bought but will be unlocked after collecting a certain amount of Precursor orbs. Note that the Mega Scrap Book can only be unlocked upon collecting another 200 orbs in Hero Mode.
Secrets[]
| Secret | Description | Requirements |
|---|---|---|
| Toggle Jak's Goatee | Removes or adds Jak's goatee. | Collect 5 Precursor orbs |
| Mirror World | Mirrors the in-game world, left is right, right is left. | Collect 15 Precursor orbs |
| Big Head Mode | Jak will have an overly large sized head. | Collect 30 Precursor orbs Collect 35 Precursor orbs (Hero Mode) |
| Small Head Mode | Jak will have a very small sized head. | Collect 45 Precursor orbs Collect 40 Precursor orbs (Hero Mode) |
| Scrap Book | A collection of various concept art from the game. | Collect 55 Precursor orbs |
| Scene Player Act 1 | A collection of all cutscenes from Act 1. | Collect 65 Precursor orbs |
| Vulcan Fury gun course | An extra training course at the gun course. | Collect 75 Precursor orbs |
| Scene Player Act 2 | A collection of all cutscenes from Act 2. | Collect 95 Precursor orbs |
| Peace Maker gun course | An extra training course at the gun course. | Collect 105 Precursor orbs |
| Scene Player Act 3 | A collection of all cutscenes from Act 3. | Collect 125 Precursor orbs |
| Reverse Races | The normal NYFE races, but in reverse. | Collect 135 Precursor orbs |
| Level Select | A collection of all missions in the game. | Collect 145 Precursor orbs |
| Unlimited Ammo | Will give unlimited ammo for all four Morph Gun weapons. | Collect 155 Precursor orbs Collect 20 Precursor orbs (Hero Mode) |
| Unlimited Dark Jak | Will give Jak unlimited Dark Eco, for unlimited Dark Jak transformations. | Collect 165 Precursor orbs Collect 25 Precursor orbs (Hero Mode) |
| Invulnerability | Makes Jak invincible to all damage. | Collect 175 Precursor orbs Collect 30 Precursor orbs (Hero Mode) |
| Hero Mode | A new game mode that has stronger enemies. | Collect 200 Precursor orbs |
| Mega Scrap Book | A large collection of various concept art from the game. | Collect 200 Precursor orbs in Hero Mode |