Neat game! (pun intended ;) The game looks great overall, but there are a few places where graphics is less good like exits and enemies. Mechanically, I like how fluid the spear throw feels. I also wanted to stick the spear into a rotating cog (which is a background in one of early levels) to see it spin with it. That might be a really fun mechanic to add. I was missing some defensive capabilities: maybe it is intended, maybe add e.g. enemy knockback or some ability to shield yourself.