Defeat Doctor Banner
Defeat the Akler
Finish Peculiar Stuff's "The School" level, without getting discovered
Reach the top of a certain wall
Ride a dragon across the sea
Defeat the Evil Queen's Black Knight 20 times in a single game
Completelly destroy a certain vehicle
Slay over 100 turkeys
Beat the drugged level in Going mad
Kill the same zombie over and over 7 times in The Standing Zombies
Grab every single coin
Defeat the Demodoctor
Grab every single blue ticket
Beat every "Special features" level
Defeat the Undead King
Defeat the Evil Queen
Defeat KingPink
Defeat Yubi
Defeat Salamandra
Defeat Pavos
Defeat Twight
Finish Peculiar Stuff's "The School" level
Grab every single blueprint
Time to rest and drink a beer