Here is the full list of all 16 Cats are Liquid achievements.
Complete the Reset level pack.
Always watching, always there. You can't escape.
Complete Companion World 2.
Complete Companion World 3.
Complete Companion World 1.
Complete the game.
Complete World 7.
Complete World 8.
Complete World 6.
Complete World 5.
Complete World 4.
Complete World 3.
Complete World 2.
Complete World 1.
Complete the entire game without destroying any moving enemies, in a single run.
Complete the entire game without taking any damage, in a single run.