Here is the full list of all 24 Powers in the Basement achievements.
You read all the books
You endured all the bad jokes in one single run
You solved all the crosswords in one single run
You fished all the red herrings
Find the Easter Egg
You burned all Will's fingers. Again. And again.
You gouged your eyes with an improper use of the slingshot
You really enjoyed those beans ping against the horn
Find all the relics
You ate 10 or more low-calorie bars
You either don't care about your health or you need math tutoring
Lots of heavy metal hits... on your head
Beat the game
Buy the Extended Soundtrack to support our work :)
You did your best to injure Will, but his pixels are made of steel!
The house mice have made a fool of you
You didn't manage to electrocute yourself but it could have worked
You've drawn mighty sounds from the Phallarhorn... to no avail
You accidentally used your memories to light a grill
Never gonna give you up, never gonna let you down...
You tried and tried to pick stuff from the fire with your bare hands.
Beat the game in less than 15 minutes
You picked up every single item in one single game
You ate energy bars and moatballs. Improve your diet with some junk food maybe?