| icon | info | gamerscore |
|---|---|---|
| Crash survivor Complete Episode 1 | 25 | |
| Save the castaways Prevent the fuel leak from igniting | 15 | |
| 815 Discover all the memories in Flashback 1 | 20 | |
| Pearl Station Photograph Pearl Station emblem | 20 | |
| The way home Finish the game | 200 | |
| Hero's hero Save Jack | 25 | |
| Through the Flame Complete Episode 6 | 125 | |
| Showdown Successfully confront Beady Eyes | 10 | |
| Mapping the Island Photograph:
1- Blast door map
2- Blast door map for the hidden entrance
3- Sayid's cable map | 10 | |
| Whatever it takes Discover all the memories in Flashback 6 | 30 | |
| Behind the wall Complete Episode 5 | 100 | |
| Boom boom Open the secret door | 10 | |
| Dharma Ride Photograph Dharma van | 15 | |
| Slave Photograph skeleton in Black Rock | 15 | |
| Castaways' Treasures Photograph:
1- Kate's plane
2- Charlie's guitar
3- Locke's wheelchair | 10 | |
| Persephone Discover all the memories in Flashback 5 | 30 | |
| Into the hatch Complete Episode 4 | 75 | |
| A Turn of the Screw Photograph A Turn of the Screw | 10 | |
| Radzinsky Photograph bloodstain on the Swan ceiling | 15 | |
| Desmond's Past Photograph:
Kelvin's jump suit
Medical cabinet with vaccines
Desmond's mural | 10 | |
| Button pusher Enter the numbers | 15 | |
| Identity crisis Discover all the memories in Flashback 4 | 30 | |
| Medical Station Photograph Medical Station emblem | 20 | |
| Via Domus Complete Episode 3 | 50 | |
| Beam of light Photograph beam of light coming from the hatch | 20 | |
| 4 8 15 16 23 42 Photograph numbers on sealed hatch | 15 | |
| Blackmailer Convince Locke to help | 15 | |
| Behind the glass Discover all the memories in Flashback 3 | 20 | |
| Locate the cockpit Complete Episode 2 | 25 | |
| Sweet memory Discover all the memories in Flashback 2 | 20 |
