IMPORTANT: Always quick-save before opening chests with monsters.

Bestiary:

• 032. Scissorjaws
• 037. Chimera Sphinx
• 060. Mega Parasite
• 064. Pit Fiend
• 067. Great Malboro
• 069. Salamander
• 070. Ice Lizard
• 072. Hecteyes
• 075. Abyss Worm
• 084. Vampire Lady
• 087. Killer Mantis
• 119. King Behemoth - (B3: Chest Monster)
• 120. White Dragon
• 121. Green Dragon
• 122. Blue Dragon - (B2: Chest Monster)
• 123. Red Dragon - (B4: Chest Monster)

• C-211: Diamond Mace - Small area in the east.
• C-212: Hellfire - Bottom-left corner.

Take the bottom-right door (A) to B2.

• C-213: Hellfire - Top-left corner.
• C-214: Antarctic Wind - Small area in the far right.
• C-215: Cat Claws (Monster) - At the bottom. 
  Monsters: Blue Dragon

Take to the top-right door (B) to B3.

Note: walking across the waterfall deals continuous damage.

• C-216: Rune Axe (Monster) 
  Monsters: King Behemoth

There is a wizard at the bottom of the waterfall, he sells powerful magic.
Next, take the third door (C) to the next floor.

• C-217: Betrayal Fang - Chest in the middle area.
• C-218: Yoichi Bow (Monster) - Chest in the top-right corner. 
  Monsters: Red Dragon - Weak against ice.

Top room (D) has 3 chests:

• C-219: Aegis Shield - Left chest.
• C-220: Dragon Armor - Middle chest.
• C-221: Holy Lance - Right chest.

Take the bottom-right door (E) to B5.

Follow the path:

• C-222: Hi-Potion
• C-223: Protect Ring
• C-224: Elixir

Take the exit (F) to B6.
Follow the path and step on the portal (G) to teleport to Pandaemonium.