Here is the full list of all 31 Spinch achievements.
CLEAR A LEVEL WITHOUT COLLECTING A CUBE
UNLOCK EVERY BONUS GAME
COLLECT EVERY BABY IN WORLD 4
COLLECT EVERY BABY IN WORLD 5
COLLECT 1000 CUBES
COLLECT EVERY BABY IN WORLD 3
COLLECT EVERY BABY IN WORLD 2
COLLECT EVERY BABY IN WORLD 1
KILL A WOKE WORM WITH INVINCIBILITY
SCORE 100 PERCENT IN BONUS GAME
JUMP 1000 TIMES
CRASH 20 HIDDEN DOORS
DIE 100 TIMES
STOMP 50 GUM GUMS
COLLECT 50 HEARTS
CLEAR EACH LEVEL IN WORLD 1 WITHOUT GETTING HIT
CLEAR EACH LEVEL IN WORLD 2 WITHOUT GETTING HIT
CLEAR EACH LEVEL IN WORLD 3 WITHOUT GETTING HIT
CLEAR EACH LEVEL IN WORLD 4 WITHOUT GETTING HIT
CLEAR EACH LEVEL IN WORLD 5 WITHOUT GETTING HIT
CLEAR EACH LEVEL IN GAME WITHOUT GETTING HIT
CLEAR EACH LEVEL IN WORLD 1 WITHOUT DYING
CLEAR EACH LEVEL IN WORLD 2 WITHOUT DYING
CLEAR EACH LEVEL IN WORLD 3 WITHOUT DYING
CLEAR EACH LEVEL IN WORLD 4 WITHOUT DYING
CLEAR EACH LEVEL IN WORLD 5 WITHOUT DYING
CLEAR EACH LEVEL IN WORLD 6 WITHOUT DYING
CLEAR EACH LEVEL IN GAME WITHOUT DYING
COLLECT EVERY BABY IN WORLD 6
COLLECT EVERY BABY IN GAME