Jump over the first island in "Bay of Medusa"

Find and talk to the orca in "Bay of Medusa"

Reach "The Undercaves"

Use the speed swim in "The Undercaves"

Recover your breath at the last possible moment

Reach "The Vents"

Reach "The Lagoon"

Get a lost dolphin to follow you

Reach "Ridge Water"

Find and talk to the orca in "Ridge Water"

Reach "Open Ocean"

Clear "Open Ocean" without taking damage

Reach "Ice Zone"

Slide on top of ice

Reach "Hard Water"

Reach "Cold Water"

Find and talk to Big Blue in "Cold Water"

Reach "Island Zone"

Reach "Deep Water"

Find and talk to the Asterite in "Deep Water"

Reach "The Marble Sea"

Obtain invincibility

Reach "The Library"

Reach "Deep City"

Jump over the stone island in "Deep City"

Reach "City of Forever"

Clear "City of Forever" without using the purple ring

Reach "Jurassic Beach"

Reach "Pteranodon Pond"

Receive help from a Pteranodon

Reach "Origin Beach"

Reach "Trilobite Circle"

Reach "Dark Water"

Defeat the Asterite in "Dark Water"

Obtain new powers from the Asterite in "Deep Water"

Reach "The Tube"

Reach "Welcome to the Machine"

Reach "The Last Fight"

Defeat the Vortex Queen and beat the game

Beat the game in one session without using any passwords

Sing to another dolphin