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