So, you've been spending about four hours charging through the Bonus Dungeon. It must be over soon, right? It's been about sixteen rooms worth of dungeon, you've fought past at least three Mini bosses, battled heroically past hordes of Goddamned Bats and Demonic Spiders and just have to be near the boss, right? See also Marathon Boss, the boss version. Not to be confused with a level in Marathon. Check Point Starvation can make these levels quite maddening, and heaven help you if it's combined with Bladder of Steel. Examples of Marathon Level include: