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