to beat plush:
first push the top box to the left
after that push the other 3 boxes to the left leaving the space on top and the top left of the unmovable cube free (make sure you don't put a box 2 spaces above the portal on the 2nd floor)
then stand on the cube and press a then jump and press a then quickly press left so you dont fall through the hole you now made
next take one of the boxes on the first floor and fall through the 2nd floor with it
then go through the portal and the other portals to the last floor
from here make a 4 box stair with the 1 box from the first floor and the 3 boxes on the 2nd floor
finally, go on top of the stair you made and jump and press a to get right below the exit then jump to win
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