I somehow managed to cut the buttons and it prevented me from doing anything else :(
Also when I was almost at the top of the screen the cube just got really hard to control - I could no longer jump and move at the same time, making the game completion impossible for me.
However, the idea is nice and I like the premise. I only wish there was a bit more polish when it comes to the controls and cutting mechanics as it was a bit frustrating in the end when I couldn't finish the game because of it
(I know, skill issue :D )