Really enjoyed this - great ideas, actually very similar to what we had wanted to put into our game (random chaos effects and boons) but super slick implementation - we ran out of time to do all we wanted with the added effects.
Will come back and play again :)
I did find the mobs not moving into other rooms after you made it easier as you could effectively nullify the no shoot / lights out chaos effects. The 1hp one is evil though :D