It felt long to actually get into the gameplay phase, I understand you wanted to give some context but the game could still work without. Nice graphics and introduction object manipulation.
That time control idea in relation to a climbing challenge was very clever and original. I think with bugfixes, it has some potential as a climbing game.
I kept getting my arm stuck under the boxes, also the boxes collision would need some work.
Anyway congratulations for an original and overall well done entry !