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