| Unlockable: | How to unlock: |
| 815 (20) | Discover all the memories in Flashback 1 |
| Behind the glass (20) | Discover all the memories in Flashback 3 |
| Sweet memory (20) | Discover all the memories in Flashback 2 |
| Crash survivor (25) | Complete Episode 1 |
| Locate the cockpit (25) | Complete Episode 2 |
| Identity crisis (30) | Discover all the memories in Flashback 4 |
| Persephone (30) | Discover all the memories in Flashback 5 |
| Whatever it takes (30) | Discover all the memories in Flashback 6 |
| Via Domus (50) | Complete Episode 3 |
| Into the hatch (75) | Complete Episode 4 |
| Behind the wall (100) | Complete Episode 5 |
| Through the Flame (125) | Complete Episode 6 |
| The way home (200) | Finish the game |
| A Turn of the Screw (10) | Photograph A Turn of the Screw |
| Boom boom (10) | Open the secret door |
| Castaways' Treasures (10) | Photograph: 1- Kate's plane 2- Charlie's guitar 3- Locke's wheelchair |
