Pretty much what it says in the title. I recently picked up DoomRL again and started a new save file and it's been a blast. However, after a particularly long and grindy hunt for a diamond badge left me successful but burnt out, I grabbed Jupiter Hell to spice things up in the meantime. I say this to clarify that I am familiar with roguelike fundamentals, but am wondering about the more specific quirks that JH has (enemies, builds, special levels, etc.) and am hoping someone can explain them in a way that relates them to similar features in DRL (if that makes sense).