This got started right away with a very serious story!

I like the idea of getting random combinations of boss abilities, and giving the player a say in the difficulty by deciding how many abilities to spin for. Sounds like you also left the game open to support more abilities in the future, that should pay off if you choose to continue to expand the game! I did find the fights challenging (one of the rounds the boss had the flying ability and it took a while to find openings to deal damage), but this was fun and is a nice start to a potential larger game with good fight mechanics and the framework for the game loop already in place.

It's a fun little game, though it lacks a bit of direction. 

I didn't realize at first that you could teleport using the 'T' key; I thought I had to interact with the door, since the game tells you early on that you interact using 'Enter'. As for the interaction key, I would have gone with 'E' or 'F', as those are the standard keys found in most video games. The boss fight was cool! However, I only discovered later that you can spam-jump to dodge attacks more easily; a quick tutorial involving some basic enemies would have been nice! The story is funny and charming! The music is good, too, and the environment and art style are great.

Regarding combat, I would have added more audio and visual feedback—things like impact effects, camera shake, or "hit stop" combined with a flashing effect (rather than just making the character transparent, even though that does let the player know he is invincible while transparent) for critical hits or when getting killed by the boss; this would add a sense of power and intensity to the game.

With those additions, I think you'd have an excellent game. You already have a solid foundation and a story that is funny and engaging right from the start, with a clear objective established immediately.

Great job developing all of this on your own ! :D

Cool concept, but I think the boss's HP is way too high, and that makes fighting him a bit less fun. Also narrative and dialogues were funny)

I beat the boss but wasn't sure about what to do next, so I teleport back but couldn't do much more than just beating him again. Maybe I missed something ? 
I liked your take on the theme though, and beat two very differents bosses, with more content and maybe stuff that really changes the boss, It could be fun. I was eager to find what the gold part was but I guess I'll never see :D

Great job anyway !

Great game. I only wish there's was more to do, but otherwise great game