Great entry!
The jump's a little tricky to get the hang of, but really suits the character. Dash feels good (though I often lost it on death) and the sound design is really good.
I think the Boss's health doesn't reset after death. Not that I'm complaining. If it really took that much cumulative damage, that thing would have taken me a while.
I found the bit after the Boss a bit tricky, but, gotta roll with the punches I guess.
I'll post my record when I upload it.