Watch the Stage Tutorial of a Stage you've cleared.
Fail a Stage while holding a backpack.
Acquire a backpack.
Check all Walkthrough Tips in the Gallery.
Browse the Sound Gallery.
Play the original Umihara Kawase.
Earn all available Trophies for Sayonara UmiharaKawase +.
Clear Sayonara UmiharaKawase +.
Acquire 45 backpacks.
Clear Tadpole.
Clear Crab.
Clear Balloonfish.
Clear Tadpole 2.
Clear Crab 2.
Play Survival Challenge
Clear Survival Challenge.
Clear all routes on Survival Challenge.
Browse the Illustration Gallery.
Unlock all Stages.
View everything in the Illustration Gallery.
Play everything in the Sound Gallery.
Watch all Stage Tutorials.
Play your own Replay 10 times.
Catch a Tadpole.
Clear the second door in a Stage.
Clear all doors.
Acquire two backpacks at the same time.
Fail a Stage 20 times.
Fail a Stage 50 times.
Watch the ending of the original Umihara Kawase.
Use all characters.
Acquire 10 backpacks.
Acquire 30 backpacks.
