Unlock the Unknown mask

Unlock the Bear mask

Unlock the crying mask

Pet 3 dogs in a run

Unlock the dirt mask

Unlock the peace mask

Unlock the sleep mask

Find the Pipe mask

Find the lab mask

Find the plant mask

Find the stoplight mask

Get to room 200

Unlock the Vener mask

Complete a "true pacifist" run: Pet a dog without killing anyone.

Unlock the arrow mask

Unlock the body mask

Unlock the sugar mask

Unlock the scarlet mask

Unlock the dino mask

Unlock the hat mask

Unlock the book mask

Get lucky

Reach the second biome in neutral mode

Get the cat back to its owner

Unlock the fish mask

Spare Normal Guys until the statue room

Spare Shoot Guys until the statue room.

Spare dogs until the statue room.

Spare Heart Guys until the statue room.

Spare drones until the statue room.

Bring a mecha-dog to the statue room

Buy the reverse mask

Buy the wood mask

Buy the neon mask

Buy the stone mask

Unlock the painting mask

Kill a mecha-dog with the shotgun

Kill an enemy with the gong

Bring the cat to the piñata

Find the dodo mask in the credits

Spare juiceboxes until the statue room

Don't get hit until the statue room

Do a high score in flank mode

Hit 3 enemies in a single katana hit

Kill a mecha-dog with the katana

Grab the alien mask

Go in the purgatory.

Reach room 200 with wings

Hit a bomb with the gong

Corrupt the statue room

Beat The Fox.

Stay in first form until the statue room

Kill an enemy with a statue

Corrupt a mask

Uncorrupt a corrupted mask

Feed a drone enough juice, then kill it

Get three mask together

Buy a mask from a corrupted dispenser

Unlock the nose mask

Box a mecha-dog

Unlock the bottle mask

Get extremely corrupted

Get two mask together

Unlock the happy mask

Unlock the onion mask

Unlock the flower mask

Unlock the staff mask

Unlock the caregiver mask

Unlock the fire mask

Crack the egg

Beat the fox in the true fight