I really liked it! I love the idea of being able to choose the negative attributes of the level.
I think if I was going to improve one thing it would be to make more use of the limitation. I did a platformer myself as well and saw it as just not using RNG, but the more I think about it we could have done things that actively involved the limitation rather than just stricktly not using RNG. Something like havng to remember a non-random sequence. Like if all the fading/moving/dropping platforms all happend on a music beat so when you played the game with sunglasses you could still do it with all the challenges if you learnt the right music beat/timing to jump.
I dunno, that might be a terrible idea haha but food for thought maybe.
Good job!