Here is the full list of all 18 Super Kawaii Ninja achievements.
Finish the very first level
Finish the normal mode
Finish the first survival level
Finish the survival mode
Finish the first challenge level
Finish the challenge mode
Finish the first story part
Finish the story mode
10% the game
30% the game
70% the game
90% the game
watch the tutorial
play the Shell game
Do a reset+
Buy the mininuke
Beat the boss
100% the game