YMMV / Slender Fortress

• Nightmare Retardant: Despite how several of the bosses are indeed, pant-soakers, there is still some levity that the thing that's hunting you down is someone like Woody, Ms. Fanservice versions of FNAF characters, Bad Batter, Shrek, Senator Armstrong, Daisaku Kuze and even Big Smoke!
• That One Boss/Demonic Spiders: There are many hard bosses, almost impossible to outrun. But Woody deserves special mention, due to the static and the clones
• That One Level: Abandoned and Ward are nearly impossible, but Ward is definitely the hardest one because, unlike Abandoned, where you could exploit Chris and outrun him in a certain area, Ward doesn't have any of this and Trager spawns everywhere
  • The Five Nights at Freddy's maps. Five Rounds is a tough map, but Return to Freddy's is just worse.