Enjoyed the aesthetic of this game - between the sound effects, music, design, and mechanics it all came together very cohesively. Great work!
I think the thing that tripped me up the most was the mushroom bouncing + spikey vines. I kept getting stuck on the edge of the mushrooms or spikes. Also, I realized after much failure that a bounce alone is not enough to propel you over that second jump. It seems you need a bounce + jump. I'm not sure if there is any better way to differentiate between the bounce or the bounce-jump.
I also really liked that the camera moved around the level and gave you different perspectives of things. It made the game more interesting to play (as others have also said). I'd probably limit the use of it a little more - it got disorienting at times. But overall, it's definitely a cool mechanic to include.
Wonderful entry!