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