Here is the full list of all 48 Kraken Academy!! achievements.
Witness the end of the world.
Bounce on a bouncy castle.
Smash 1000 things.
Collect 75,000 shlotinki.
Complete all side quests.
Befriend the Cafeteria Lord.
Collect all furniture.
Befriend Kostadin.
Go on all the dates.
Befriend Vladimir.
Collect 175 bottles in one go.
Travel back to Monday 5 times.
Befriend Nikolai.
Befriend the Janitor.
Save Kraken Academy from doom and destruction.
Free the Drama Club spirit.
Call your Mom 8 times.
Befriend Jean.
Befriend Pierre.
Dig up all piles of dirt in one time loop.
Put furniture into every slot in your room.
Collect all club cards.
Free the Sports Club spirit.
Pull all the levers in the boss's office.
Get the drama club uniform.
Beat Yuki and Wendy's challenges on hard.
Get a score of 20 or more in Dimitri's challenge.
Befriend the Hobo Guy.
Collect 10,000 shlotinki.
Befriend Patitsa.
Befriend Dimitri.
Score a goal in the gym.
Free the Art Club spirit.
Befriend Broccoli Girl.
Summon a poop demon.
Befriend Ana.
Convert 3 bottlemachines to the cause in one time loop.
Get the cultist robes.
Smash 250 things.
Befriend Ms. Markova.
Free the Music Club spirit.
Get the skeleboner costume.
Wash your hands in 4 different sinks.
Pet a cat.
Befriend Simona.
Get the penguin costume.
Gain the power to travel back in time.
Collect 75 bottles in one go.