Glad for the warning about the control scheme! Very necessary. I liked this a lot. The mechanic is a stand-out, interesting, and taking time to figure out how best to use particularly the Ctrl key is rewarding.
We did notice that if you die by falling on the first sawblade level, the game doesn't seem to realise it and keeps going. However you can work around this using menu / continue.
The art is satisfyingly pixellated, the movement and time mechanics are smooth and accurate, and the music is fitting. Maybe some more movement sound effects would be appropriate when you get time (pardon the expression) particularly for the time/forward/back cycle, and jumping. Great that you managed to implement a sound menu also in the time available. Really well done, great submission!