Pretty great little puzzle platformer. That was fun to play through. I got stuck for a little bit because I thought the first swing was a pipe. You may want to tweak that design or make them move back and forth a bit when stationary. Or introduce them in a different way.
I enjoyed the dark humor. All those dead frogs!!! Jumping over them at the end was macabre and funny but also a little frustrating. Did not enjoy how easy it was to die there, and then having to backtrack through the two previous challenges.
Impressive start here. Excellent work.