Here is the full list of all 15 Miaou Moon achievements.
Unlock the 2nd Moon
Unlock the 3rd Moon
Unlock the 4th Moon
Unlock the 5th Moon
Collect 36 Energy Cells on a moon
Complete the game
Complete the game at 100%
Collect 12 Tools on a moon
Discover 10 dead spacionauts
Discover all dead spacionauts
Eat 1000 energy food
Kill 100 monsters
Teleport 10 times in a level
Bump your cat 100 times
Get poisoned 20 times