Loved it.
I was a bit confused first, cause I thought i have to get back to the end of the spear to pick it up, I saw the Q is reset, but I thought it means restart. xD
There were a few parts where I kind of ignored the level design.
I think you should create walls that will bounce your spear back, so you have more control over the player while designing the levels.
Also some visual feedback about your charge percent would be nice.