I was just jumping on the tiles at the first room like a mad man for a while then I started to monitor the behavior and I figured it out finally lol. the second room was amazing, first I tried to jump into the glass by perfectly putting the boxes on top of each other then jumping on them from the ramp lmao. Then I was throwing boxes at the handle lool, I was trying all kinds of crazy solutions.
And when I saw the ending I was like hell no this is a complete game.
Awesome game really enjoyed it.
(Also the music gave me the chills, felt like some psycho guy has locked me in these rooms. great choice)