Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Achievement | How to unlock |
|---|
| Undercaves Survival (5) | Pass the Undercaves without dying once. |
| Death Sonar (10) | Acquire the Death Sonar. |
| Ecco the Hero (10) | Rescue the dolphin family in The Lagoon level. |
| Game Win 2x (10) | Complete the game 2 times. |
| Life Saver (10) | Reach Ridge Water without dying. |
| Shark Killer (10) | Kill 10 Sharks in a row. |
| Sonar User (10) | Kill 30 enemies with the Death Sonar. |
| Octopus Avoider (15) | Pass the Undercaves without being hit by an Octopus. |
| Songs in the Sea (15) | Find the hidden glyph in Origin Beach ("Never have we heard..."). |
| Game Win 3 (20) | Complete the game without dying more than 3 times. |
| Sonar Free (35) | Reach the Dark Water Level without the Death Sonar. |
| Big Blue Message (50) | Find the glyph in Island Zone that tells you to find Big Blue. |
Verified by: this cheat is unverified
Submitted by:
Jax06 on February 06, 2012
