Here is the full list of all 39 Paw Paw Paw achievements.
Break into the castle
Ride the Skywhale
Defeat Warden
Survive The Pit
Defeat The Dark Knights
Get into the city
Reach level 10 on a character
Hit 10 innocent bystanders
Defeat Worm
Defeat Aegel
Skate off the avalanche
Defeat Baby God
Unlock Welu
Defeat Grillz
Reach level 5 on a character
Unlock Obek
Defeat Big Bad Pug
Unlock Doggu
Push the payload
Defeat King Bunnylord III
Defeat Root
Defeat Gragal
Unlock Domba
Complete the story mode
Unlock 50 weapons
Unlock 20 legendary weapons
Recruit 50 companions
Spend 500,000 foods
Have 100,000 foods
Throw 100 bombs
Drink 100 potions
Ride 100 mounts
Reach max level on a character
Die 100 times
Roll 1,000 times
Break 500 chests or barrels
Defeat 1,000 enemies
Play co-op
Play co-op with 4 Players