Ys IV: The Dawn of Ys

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Ys IV: The Dawn of Ys
Publisher: Hudson Soft Platform: TurboGrafx-CD Released in JP: December 22, 1993 This game has debugging material. This game has a hidden sound test. This game has a hidden level select.

Debug Mode

To enable debug mode, the byte at 21-bit address $D1CBA needs to be constantly replaced or substituted with the value of $01. This can be achieved in Mednafen by following these keyboard instructions:

• ALT + C
• Command: 2 (Cheat Search...)
• Command: 1 (Add Cheat)
• Name: Debug Mode
• Type: S
• Address: $D1CBA
• Value: $01
• Enable: Y
• Add cheat confirmation: Y

To use the debug mode on a real system, or an emulator without cheat functionality, patch track 2 and track 32 at offset $218AB (assuming 2048-bytes-per-sector rip), replacing $9C with $8D.

Debug Area

Choose "Beginning" at the title screen to start in a special debug area, with various NPCs you can talk to to activate various debugging features.

Debug Menu

To activate the debug menu in-game, hold I while pressing II.

• STAT: Set debugging flags.
• EXP: Add 100 exp.
• GOLD: Directly set gold quantity.
• HP/MP: Manipulate current HP and MP.
• GOODS: Select and add items to the inventory.
• MUSIC: Play CD-DA music and ADPCM voice acting.
• FLAG: Set game state flag(?).
• F-MAP: View game state flags(?).