Mother 3/Item data

This is a sub-page of Mother 3.

Item data table
Game	Mother 3
Start Address	0xE5108
End Address	0xEBD07
# of Entries	256 (0x100)
Entry Length	108 bytes (0x6C)
Total Length	27648 bytes (0x6C00)
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Overview

The item data table contains the stats and parameters for each item in the game. It does not include the item names; for that, see the item names table.

Format

Each entry in the table uses 108 bytes.

Field listing

• 00-03 (04) = [ A ] Item number
• 04-07 (04) = [ B ] Item type
• 08-09 (02) = [ C ] Key item flag
• 0A-0B (02) = [ D ] Sell price
• 0C-0F (04) = [ E ] Equip flags
• 10-13 (04) = [ F ] HP increase (signed)
• 14-17 (04) = [ G ] PP increase (signed)
• 18-18 (01) = [ H ] Offense increase (signed)
• 19-19 (01) = [ I ] Defense increase (signed)
• 1A-1A (01) = [ J ] IQ increase (signed)
• 1B-1B (01) = [ K ] Speed increase (signed)
• 1C-1F (04) = [ L ] Kindness increase (signed)
• 20-35 (16) = [ M ] Status ailment protection
• 36-3A (05) = [ N ] Elemental protection
• 3B-3F (05) = [ O ] Attacking type
• 40-67 (28) = [ P ] PSI/Item/Actions Info Chunk
• 68-6B (04) = [ Q ] Item uses in-battle

Table view

       00   01   02   03   04   05   06   07   08   09   0A   0B   0C   0D   0E   0F
    +--------------------------------------------------------------------------------
00  | [        A        ] [        B        ] [   C   ] [   D   ] [        E        ]
10  | [        F        ] [        G        ] [ H] [ I] [ J] [ K] [        L        ]
20  | [                                      M                                     ->
30  | <-             M            ] [           N          ] [           O          ]
40  | [                                      P                                     ->
50  | <-                                     P                                     ->
60  | <-                P                   ] [        Q        ]

About PP increase (signed)

Even though the game considers only the first two bytes of PP increase, the developers left two more bytes.
This was probably done so the table has the same structure as the Level-up stats table.

Item type

Not fully known. Values range from 0 to 9:

00: Weapon

01: Body armor

02: Headgear

03: Armgear

04: Food

05: Status healer

06: Damaging Item

07: Special Effect Item

08: Key Item

09: Unused Key Item

Key item flag

Seems to be 01 for non-key items, 00 for key items.

Equip flags

This is a bitfield indicating who can equip this item:

• 01 = ?
• 02 = Flint
• 04 = Lucas
• 08 = Duster
• 10 = Kumatora
• 20 = Boney
• 40 = Salsa
• 80 = ?

Status ailment protection

Indicates how much to protect against certain status ailments. A more negative value means more protection. Each value is a 16-bit signed integer. There are 11 values, corresponding to the table below:

00: Poison

01: Paralysis

02: Sleep

03: Strange

04: Cry

05: Forgetful

06: Nausea

07: Fleas

08: Burned

09: Solidified

0A: Numbness?

Elemental protection

Similar to the status ailment protection, an item may also protect from elemental damage taken from PSI or Bomb items. Each value is an 8-bit signed integer. There are 5 values, corresponding to the table below:

00: Neutral (PK Love, Starstorm, Ground)

01: PK Fire

02: PK Freeze

03: PK Thunder

04: Bombs

Attacking type

These bytes are only considered if the item is a Weapon.
The first byte detemines what battle action the normal "Bash" one should become when the weapon is equipped.
This is used to make the battle action name change to "Kick", "Shoot" and other such names.
By modifying this value, one can make characters who aren't supposed to use PSI use them or use the battle action Consider.
The battle action name pointers to the Battle text are obtained by adding 0x9D to the value of the first byte.
Boney's battle action won't change name if it's an attack, but it will change name if the action becomes a skill.

Info chunk

PSI data, Item data, Battle skills table and Battle actions table all share this group of 0x28 (40) bytes.

It is called Battle Info chunk.

Item uses

If the third byte value is 01, the item will be usable only one time, in battle, before disappearing.
If the third byte value is 00, the item won't disappear after the use.