Here is the full list of all 13 Umihara Kawase achievements.
Reach to one of the endings
Reach to ALL endings
Reach to ALL stages
Clear ALL the doors
Clear Tadpole
Clear Parrot fish
Clear Crucian carp
Clear Crab
Clear Tadpole 2
Capture ALL the enemies
Get all backpacks
Reach to the last field, after playing more than 30-min.
Play the game with 5-min. rule