I sort of agree with the other reviewers... does the invincible hairy guy just come out if you take too long on a level? And I took a while on the first level and he came out really fast on the second, so is there something like a cumulative countdown timer that you could just show somewhere as part of routine gameplay? If that invincible hairy guy is part of a timer to say you're taking to long and u sux so it's time to die and start trying to git gud then... well... I guess I sux cuz I got kilt by him a lot.
It also took me a while to figure out that you need to find a key before you can open a door to the next level. I wouldn't fault you for leaving that as something for players to discover on their own without being mentioned in the description, but overall I have to agree that it seems like more explanation of what's going on in the game could help.
That said, I'll probably come back to this game later and figure out what's going on and be like "Nah, don't explain anything, just let ppl figure shit out on their own and it'll be awesome once they do". From what I can see so far, it looks like this game was pretty professionally made.