Clock Tower

• Enter the main lobby of the tower. Save your game and organize your inventory.
• You'll need to find the Obsidian, Amber, and Crystal Gems for the time goddess puzzle.
• In the library, examine the music box (2F) and swap its 6 pins (A to F) — arrange them so the melody plays smoothly, with no discordant notes — to get the Chronos Key.
• Use the key on the top floor to access the bell mechanism.
• Solve the gear puzzle in the main machine (add and subtract hour times) using the three gems. Upon fitting them correctly, you'll ring the rescue bell.

• Quickly head down to the balcony/courtyard. You'll see the rescue helicopter arrive, but Nemesis shoots it down with his rocket launcher!
• A critical cutscene plays where Nemesis infects Jill with the T-Virus.

Jill collapses after the fight. Carlos arrives, picks her up, and carries her to safety in the chapel, taking the lead temporarily.