I enjoyed playing as the little onion-shaped spirit guy, even though the graphics were fairly simple they were really appealing!
It felt to me like a lot of the hitboxes for the spikes were a bit too big, I kept dying by coming just a hair to close to some things without actually touching them, especially the vertical spike walls and the trampolines. I honestly thought I was going to soft-lock the game, I created so many bouncing dead onions at one point that I thought I'd made it impassable xD
I definitely wasn't playing correctly all the time, I sort of spammed my way up a lot of the vertical obstacles by hammering the buttons because I made too many corpses and couldn't get past them easily, but I'm awful at platformers, so perhaps take that with a grain of salt.
Overall I enjoyed it, but nearly slid into frustration a couple times with how often I died without meaning to. Nice concept, clean execution, managed to survive my inept platforming without breaking!
Just an example of how much I kept running into the sides of the spikes xD