Rated! This was one of the most addictive entries I've played. The presentation is simple yet really effective in hooking you in, and most of the modifiers worked really well with each other. One thing I'd change is the "Some keys are not to be trusted" modifier, in my playthroughs that one always meant a game over because I'd never get the right key and I think instakilling the player doesn't mix well with randomness, especially with a lives system. I think if the fake key did something like randomly teleport you it would work much better.
Overall a very addictive and fun game!