A solid entyry, I had fun playing the game!
I could point out just a couple of things that can be improved in my opinion. The player movement is smooth, but there is a little delay on the jump that is a bit annoying. Also, the timer is way too long, instead of give me pressure I just don't pay attention to it at all.
Except for that I didn't find bugs and the game seems very polished to me. The puzzles were nice too! Good job!