Shiren 1 SFC:Debug Mode

Debug mode is an unused mode in Mystery Dungeon 2: Shiren the Wanderer originally used by developers to test things in-game.

Accessing

Changing the bytes at 8000 and 8001 in a headerless ROM (or 8200 and 8201 in a headered ROM) from FF to 00 enables a slew of debugging functions (alternately, enter Pro Action Replay (PAR) codes C0800000, C0800100).

Functions

Controller 1 Functions:

• Start: Skip to the next floor and increase Shiren's level by 1.
• B+Start: Reveal locations of all monsters on the current floor.
• Y+Start: Reveal locations of all items on the current floor.
• B+Y+Start: Kill all monsters on the current floor.
• R+Start: Display full map of the current floor.
• B+R+Start: Opens a menu allowing the selection of any item in the game.

Works with the unofficial translation, however most of the text is unreadable.

• Y+R+Start: Turns off the background music. The only way to turn it back on is to reset.
• B+Y+R+Start: Opens a sound test menu.

Controller 2 Functions:

• Start: Allows for the entire current floor to be viewed using the D-Pad on controller 2. The coordinates of the portion currently on-screen are displayed, as well as map IDs and the type of the current tyle. The screen moves in tiles, which are 32 pixel each.
• Shift (held) makes the screen black.
• X: Displays Shiren's coordinates.
• Y: Opens a sprite and animations test menu including monsters, characters, and items:
  • A plays the animation.
  • B closes the menu.
  • Up/down to move up and down the cursor of the primary menu (monster select).
  • Left/right or X/Y to move up and down the cursor of the secondary menu (direction the monster is facing).
  • Start changes whether it plays the normal animation or an alternate one.

While in debug mode, if the player heads south of Valley Inn, the debug room can be accessed.

Items Selection Menu

Pressing B+R+Start on controller 1 opens a menu to add any item to the inventory.

Items
Herbs	Weapons
Scrolls	Shields
Staves	Bracers
Pots	Arrows
Food	Others

Herbs Medical Herb Revival Herb --- Poison Herb Otogiri-So Vanishing Herb Life Herb Confusion Herb Happy Herb Wriggling Herb Expansion Seed Sleep Herb Vision Herb Unlucky Seed Contraction Seed Weed Dragon Herb Super-Unlucky Seed Speech Seed New Item Invincible Herb Kigny Tribe Seed Power Herb New Item Angel Seed Forgetful Herb Antidote Herb New Item	Weapons
Scrolls	Shields
Staves	Bracers
Pots	Arrows
Food	Others Meat Goal 1 Goal 2 Goal 3 All the options in this menu lead to a sub-menu to select monster meat and monster level, however only the first option is for monster meat. The others give goal items that end the Adventure and glitch items.

Gallery

• 

  Sound test.

• 

  Map viewer.

• 

  Item select.

• 

  Sprites and animations test.

• 

  Sprites and animations test (broken text in unofficial translation).

• 

  Item select (broken text in unofficial translation).

• 

  Item select meat sub-menu.