Satan's Bedroom is the sixth and final stage in Prince of Darkness.
- Infinite Trolly Bloggers spawn after 0 seconds0f, delay 0.67~4 seconds20f~120f.
- 1 Master A. spawns after 0 seconds0f.
- Infinite Trolly Bloggers spawn after 133.33 seconds4,000f, delay 0.67~6 seconds20f~180f.
- Infinite Trolly Bloggers spawn after 200 seconds6,000f, delay 0.67~2.67 seconds20f~80f.
- When the base reaches 99% HP:
- When the base reaches 90% HP:
- When the base reaches 80% HP:
If you start the stage, a 400% Master A. will come out. Although the Master A is buffed, the peons aren't so strong. This is a good time to gather money and chip at him. Upon hitting the base, The Face will come out with 3 Shy Boys. From this point, summon the big hitters and spam the remaining cats, as money won't be a problem for a bit. After the Enemy Base is damaged again, a Bore will come out, which should die from the cats in use. If not, add Witch Cat or another Red staller. The final wave will come after more damage on the base. Bun Bun Black and Director Kurosawah will appear, but the should also be dealt with easily. When Bun Bun Black dies, bring the Kurosawah close to your base and then chip him down until he dies and then kill the base.
Strategy 2 (Cheese, ft. Warlock & Pierre)
If you have Warlock & Pierre, this stage is easy. Kill the Master A. with Ramen and meatshield a bit but spawn Warlock & Pierre after it dies. Stop spawning anything after that. The Trolly Bloggers will stack and almost guarantee a knockback, keeping your cats from advancing to the base. A speed up is recommended. Stall like this until Warlock & Pierre recharges again. Spawn a second W&P and advance to the base. Let both Warlocks hit the base at the same time, one-shotting it and preventing the bosses from spawning. NOTE: If your ramens do too much damage, the face and shy boy will spawn. It is okay because Warlock can target all floating enemies and can easily kill The Face and Shy Boy. Then, you should be able to win.