Here is the full list of all 23 Radical Rabbit Stew achievements.
Complete World 1
Complete World 2
Pot 100 bunnies
Whack-explode a rabbit
Hurl yourself into the void
Die by lava
Play a multiplayer stage with other people
Collect every spoon
Play through the game in under 2 hours
Complete the game
Collect every blue coin
Read the credits
Explode a rabbit with the bumpers
Beat the evil Pugs Bunny
Beat the angry Lord Butter
Get eaten by bunnies 10 times
Pot multiple rabbits with one bash
Drown
Play through the game without dying
Disturb someone's rest
Go down the rabbit hole
Beat Lord Butter without taking damage
Play through the game in under 1 hour