Here is the full list of all 52 Monster Prom achievements.
You went to the LIBRARY all turns.
You ended a run with 20 MONEY or more.
You went to the AUDITORIUM all turns.
You went to the BATHROOMS all turns.
You went to CLASS all turns.
You always chose the cafeteria table with minor characters.
You went to the GYM all turns.
You went OUTDOORS all turns.
Your very first prom date! Let's take a pic of it!
You've been rejected for the first time!
You unveiled the first secret ending.
You've already unveiled half the secret endings. Way to go!
Whoa, you've seen ALL THE SECRET ENDINGS.
You went alone to prom and you had a great time!
You've seen ALL THE EVENTS in the game! Just wow.
You've seen half of the events in the game. Get some rest.
Okay, you've seen all the outcomes in the game. We didn't think we'd see this day!
You dated the game's shopkeeper. What a plot twist!
You saved the world and you brought Joy to Monster Prom. Sweet!
You took the cutest orange blob ever to prom.
You released an ancient deity just to date her. Be ready for more Zoe soon!
You fooled everyone and become the coolest ghost in town.
You saved Calculester and went to prom with him. Be ready for more Calculester soon!
Who needs prom when you can have an orgy? Good job, champ!
You bought a used tampon just because. Ugh!
You've been true to yourself and always chose the right option. Congratz!
You've been your WORST self. Congratulations?
You're playing a dating sim, yet you ask no one to prom? Genius.
You've bought all items at least once.
You've been rejected by all 6 main love interests. Maybe dating sims aren't your thing.
You've gone to prom with all 6 main love interests. What a Casanova!
You ended a run with a negative amount of MONEY. Get a job!
You aided in the failed attempt to conquer the 8th Circle of Hell.
You helped to bring peace to a fighter's heart.
You revealed one of the Coven's biggest secrets ever.
You faced the evil version of a Coven member.
You went on the weirdest trip ever
You got one of your classmates... murdered? Congratulations?
You unveiled the secrets of the greatest Catalan traditions.
You got the worst Christmas gift.
All of the First Term endings weren’t enough, so you went for the Second Term ones too. Fierce.
You can't get enough of your favorite monsters, can you?
Reading ALL OF THIS is basically like reading +1,000 pages of a book. Put it on your resumé.
You REALLY enjoy learning new lore, huh?
Well... that was unexpected.
You ended a run with 99 MONEY or more.
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