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