I collected the Gem of Strength and then died to the unidentified block behind it for some reason. This caused me to respawn unable to move.
I like the idea of the enemies being magnetic. When I first accidentally pulled one into the spikes, I thought it was cool.
The jump is indeed bad. It's not wrong to have a jump that holds momentum, but you have to commit. This jump allows you to start moving in midair, and change directions, but not stop. That's annoying because I have to zig zag to land where I want to land.