Enemy listEnemies
Chest listChests
Four remaining chests and Zeromus. Every enemy here is boss-tier, including Behemoths as random encounters. Save constantly and keep the party healed at all times.
B9-B11
B9. Head down the stairs and open the chest for an Elixir (339/342). Follow the linear path south for a Gysahl Whistle (340/342). Continue east to the warp pad.
B10. Head south down the stairs. Open the east chest for a Fuma Shuriken (341/342). Cross to the west side for the final chest in the game: another Fuma Shuriken (342/342).
Continue southeast to the warp pad. B11. Two new enemies spawn here: Zemus's Mind (20,000 HP) and Zemus's Breath (40,000 HP). Farm here if you need levels before the final boss.
Follow the linear path south to the warp pad. Step on it to reach B12.
How to beat Zeromus
A scripted battle plays between Golbez, FuSoYa, and Zemus. Then Zeromus rises from Zemus's hatred. Another scripted scene follows. When you regain control, open the Items menu and use the Crystal on Zeromus to reveal his true form. The real fight begins.
Zeromus has 65,498 HP. His main attacks are Big Bang (heavy party-wide damage), Bio, and Meteor. Rosa needs to cast Curaja almost every turn. Cecil attacks. Kain Jumps. Edge throws the Knife first (9,999 damage), then every Fuma Shuriken you've been saving, then spare weapons. Rydia summons Bahamut for consistent 9,999 with no counter risk. Use X-Potions and Elixirs when Rosa can't keep up with healing alone.
After the battle, enjoy the ending. Save when prompted; you'll load outside the Crystal Palace and can continue cleaning up hidden summons, the Pink Tail, and the level 70 trophy.