Here is the full list of all 27 Minit achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
COMPLETE THE GAME IN 25 RUNS OR LESS
COMPLETE THE GAME WITHOUT KILLING ANY SNAKES
COMPLETE SECOND RUN
FIND AN ITEM, COIN, OR HEART WITH LESS THAN 1 SECOND LEFT
COMPLETE THE GAME WITH 100% OF THE ITEMS, COINS, AND HEARTS
WATER THE DOG
FIND ALL HEARTS
BRING A GIFT TO THE DOG
FIND ALL ITEMS
SOLVE ALL THE PUZZLES IN THE SECRET TEMPLE
FIND ALL TENTACLES
FIND ALL COINS
COMPLETE THE GAME
SHUT DOWN THE SWORD FACTORY
FIND ALL HOTEL GUESTS
USE ALL TELEVATORS
USE A TELEVATOR
VISIT THE ISLAND
FIND YOUR FIRST TENTACLE
TALK TO MARY
FIND AND DEFEAT THE OASIS GHOST
FIND YOUR FIRST COIN
UNLOCK A NEW HOME
LISTEN TO THE OLD PERSON
PLAY SOME REAL MUSIC
FIND YOUR FIRST HEART
FIND YOUR FIRST ITEM