Mystery Rooms

Bank Mystery Room: Talk to the lone Archer (banker). The first talk grants 5,000 HL. Subsequent talks may yield more HL or spawn strong enemies; it's advised to leave if enemies appear. An invisible portal is below the cat NPC.

Born Fighter Mystery Room: Choose "Bring it on!" to engage in a one-on-one fight with a random enemy. Ensure you have a strong character.

Bottlemails Mystery Room: Alternate talking to the Lucky Board and the leftmost Bottlemail to trigger a battle against all five enemies.

Catsabers Mystery Room: Talk to the middle Catsaber in the row closest to you three times to trigger a battle against eight Catsabers on Geo Panels.

Celebrity Spa: Talk to the Nether Noble twice to start a battle in an area resembling the poison pools from Episode 3.

Cheat Shop: Choose one option: Bribe the Guardian (no enemies on exit panels), Boost Bonus Gauge (filled for next floor), Less/More Enemies, Make the Item World Bigger/Smaller, Lure Invaders (appear on next floor), Increase Treasure (more chests on next floor), or Increase Innocents (random Innocents on next floor). Exiting the menu locks you out.

Commuting Prinnies: Talk to the Wrestler, then the Warrior to start a fight against 96 Prinnies, a Warrior, and a Wrestler. This battle guarantees the Bonus Gauge will be maxed.

Curry Shop: Buy Curries. Continuing to talk to the NPC after shopping triggers a fight against her and four Dragon Kings.

Duplication Mystery Room: Use a character in the maxed Life Support Squad to reach the Item God at the top of a tall tower. This offers a chance to duplicate the current item, with a 100% chance on 10,000+ floors.

Fortune Teller: Talking to her gives a fortune: Bad Luck (-5 Item Levels), Normal Luck (+3 Item Levels), or Excellent Luck (+5 Item Levels). Continuing to talk after receiving a fortune can trigger a battle, removing negative levels if Bad Luck was rolled.

Hot Springs: Inspect the sign to choose to enter the hot spring, which can fully recover HP/SP, or reduce HP/SP by 50%. No battle can be started.

Item Worlder: Purchase special items like Fillers, Divers, and Gency Exits. Only one purchase is allowed per visit.

Legendary Weapon Room: Talk to the weapon in the center barrier. A Rank 40 weapon of the current item type is awarded if Weapon Mastery (WM) is 40+ for normal items, or 100 for Carnage items.

Lost Army: Talking to any of the Lost Army soldiers initiates a battle.

Lucky Boards Room: Speak to the Lucky Board a few times to start a battle.

Nushi’s Mystery Room: Talk to the Bear a few times to start a fight on a confusing map.

Mr. Egg’s Room: Choose to have Mr. Egg appear for 5 or 10 floors. Exiting the menu locks you out.

Not a Movie, Dood!: Talk to the Prinny to trigger a battle against a Twin Dragon and Dragon King (or Baal and Proto Darkdeath in a tougher variant).

Pie Master: Talk to the Fight Mistress for a free Pie weapon. Talking to the Witch triggers a fight where another Pie weapon can be stolen from the Fight Mistress.

Princess Knight: Talk to the Armor Knight to begin a battle against her and surrounding monsters.

Scientist’s Lab: Talk to the Professor twice to start a battle against clones of your party members. Their equipment cannot be stolen.

Shopping Mall: Heal at the Hospital (middle NPC). Other NPCs are shops: Archer (equipment/items), Nether Noble (Dark Assembly items), Magic Knight (Mana/EXP Potions). Shops are one-visit only.

Treasure Heaven: Open treasure chests; four green chests contain Legendary items. Requires triple jump (from maxed Life Support Squad).

Usamy Garden: Talk to the Rabbit until he mentions forcing carrots to start a battle.

Zombie Thief: Talk to the lone Zombie.