User:Hukka

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EarthBound Battle Debug Menu

I'll move this to the proper page once I get the pictures and general layout finished.

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The in-game and boot-up debug menus have been known about for quite a while, but the third debug menu managed to stay hidden for 15 years until December 2010 when it was found by two different people within days of each other! This debug menu is the same as the glitchy one accessed by the "Show Battle" option on the boot-up debug menu, but it's fully functional.

Penguin from Starmen.net created a patch to access the debug menu, which can be downloaded below. The archive contains patches for both headered and unheadered versions of the EarthBound ROM.

Download Battle Debug Menu Patch File: EarthBound_BattleDebugPatch.7z (287 bytes) (info)

Controls

General controls

With the patch enabled, simply press the Y button outside of battle to access the debug menu. The battle debug menu will initially be in party adjustment mode.

• Press the Start button to enter the battle mode.
• Press the Select button to go into enemy adjusting mode.

Party Adjustment/Effect Viewer Mode

• Left and Right will change the configuration of your party.
• Up and Down will increase or decrease the levels of all party members by one.
• The X button will change the levels of all party members to match the enemy/enemies' levels. It's unknown how the game exactly calculates the levels when there are multiple enemies present.
• The B button will display different fade-in and fade-out effects, such as the battle swirls.
• The A button will display battle effects, i.e. animations for PSI attacks and Jeff's battle items.

Battle Mode

Battle mode starts the fight with the enemy as usual. However, you can press Select to go into item giving mode.

• Press Up and Down to increase or decrease the item number by 1.
• Press Left and Right to increase or decrease the item number by 10.
• Press B to cancel.
• Press L or A to confirm and then choose which party member you want to give the item to.

Enemy Adjustment Mode

In enemy adjustment mode, a textbox will show the number of the current enemy group.

• Press Left and Right to choose which digit of the enemy group number to change.
• Press Up and Down to change the digit.
• Press L or A to confirm the enemy group selection.
• Press B or Select to confirm the enemy group selection without loading the enemy graphics/background. This will most likely result in glitchy graphics.

There's no way to exit the battle debug menu. Even winning or losing in battle mode will just bring you back to the party adjustment menu.

(Source: Penguin at Starmen.net)