I propose a cycle of three different stages for each level of a Boss Stratum. Primarily the Snarbolax Lair, the Jelly King, and Roarmulus Twins. The concept would be each time you entered a stratum, the level will randomize, giving a feeling you are entering different areas of the forest, palace, factory, etc. This would break the monotony of doing runs, and add some variety to the grinding. I think if this was implemented, there will be less complaints about grinding boss levels being monotonous.