Here is the full list of all 27 Hooligan Vasja: Christmas achievements.
Kill any boss with the last bullet
Kill 5 enemies with one firecracker
Defeat Krampus
Chase away 15 daemons
Defeat Zwarte Piet
Chase away 25 trolls
Chase away 75 ghosts
Defeat Babay
Throw 300 presents
Throw 200 presents
Chase away 125 straw scarecrows
Restore 1000 HP
Finish a level without incurring any damage
Break off a balcony from the wall
Defeat Hans Trapp
Throw 100 presents
Kill 5 enemies with 5 bullets
Kill 4 enemies with one firecracker
Kill 3 enemies with one firecracker
Do not let a bird to be killed
Hit 50 cats jumping upon Vasja
Kill an enemy with falling balcony
Defeat Gryla
Chase away 250 goblins
Use a firecracker
Manage to die while medikit is nearby
Start playing game in Christmas mode