Encounter data

Value Description
0x0 Regular battle.
0x1 No escape?
0x2 Disable victory fanfare (battle music keeps playing after win/loss).
0x4 Inherit countdown timer from field.
0x8 No Item/XP Gain?
0x10 Use current music as battle music.
0x20 Force preemptive attack.
0x40 Force back attack.
0x80 Unknown.

Monster info byte flag

Byte 0 (byte 246) — not a bitfield

Byte 246 is the camera category, a small number (0-4 in vanilla), not eight flags. getMonsterCameraCategory (0x48B9F0) reads it and initAnimationSequenceAtStartBattle (0x5027D0) turns it into the entity’s cameraDataRelated. See Informations & stats for the value table.

Byte 1

Bit Position Flag (Hex) Description
0 (LSB) 0x01 Zombie
1 0x02 Fly
2 0x04 unused — no effect
3 0x08 LvUp-Down Immunity
4 0x10 HP Hidden
5 0x20 Auto-Reflect
6 0x40 Auto-Shell
7 (MSB) 0x80 Auto-Protect

Byte 2

Bit Position Flag (Hex) Description
0 (LSB) 0x01 Increase SurpriseRNG
1 0x02 Decrease SurpriseRNG
2 0x04 SurpriseAttack Immunity
3 0x08 Increase chance to escape
4 0x10 Decrease chance to escape
5 0x20 unused — no effect
6 0x40 Gravity Immunity
7 (MSB) 0x80 Always obtains card

Every bit above was checked against the code. Bit 0x04 of byte 1 and bit 0x20 of byte 2 have no reader at all: setMonsterInfoFromDatInfoSection (0x48BBD0) is the only function that reads byte 247, and it never tests 0x04; byte 254’s readers are computeBattleSurpriseAttack / doesMonsterPartyReduceSurpriseRng / doesMonsterPartyImmuneToSurpriseAttack (0x01/0x02/0x04), computeEscape (0x08/0x10), setMonsterInfoFromDatInfoSection (0x40, sets BATTLE_FLAG_GRAVITY_IMMUNITY - this is what makes Demi miss) and computeCardDrop (0x80, which raises the card roll from 8/256 to 255/256). Setting either unused bit in a .dat changes nothing.

Byte 3 (byte 255) — not a bitfield

Byte 255 is the devour category, a number 0-8, not eight flags. See Informations & stats.

Byte 0x05 of a Battle command — a battle-menu/UI descriptor, purely UI and never read by battle logic. Copied at battle setup into the character’s per-slot command data (ResetAndParseBattleAndFieldCharacter / linkedStockFieldCharData) and consumed by BattleMenu_ExecuteSelectedCommand (0x4BC770) and the target-selection cursor. More on the surrounding battle UI: Battle UI (HUD and command menu).

Bits Meaning
0x80 Hide the ally status window while the target cursor is up. When clear (only Recover 0x20, Revive 0x20, Treatment 0x60), targeting an ally opens the party HP/status panel
0x40 Status-window detail mode — the panel lists status ailments instead of HP digits (only meaningful when 0x80 is clear; used by Treatment)
0x20 Instant command — no submenu; confirming the command goes straight to target selection (Attack, Devour, Defend, Card, Doom, …)
0x1F Submenu type, used only when 0x20 is clear (table below)

Examples from the retail kernel: Attack = 0xA0 (instant, no ally panel), Magic = 0x80 (submenu 0), Draw = 0x83 (submenu 3), Combine = 0x88 (submenu 8), Recover/Revive = 0x20 (instant, ally HP panel shown), Treatment = 0x60 (instant, ailment panel shown).

The last four route through a shared “4-row special list” helper, BattleMenu_OpenSpecialListWindow (0x4C7D00), each with its own list-id.

Id Submenu Opener function Address
0 Magic list BattleMenu_OpenMagicWindow 0x4C8840
1 GF list BattleMenu_OpenGFWindow 0x4C8280
2 Item list BattleMenu_OpenItemWindow (BattleMenu_OpenItemWindow_Alt when opened from a non-Item command) 0x4C87A0 / 0x4C8550
3 Draw window BattleMenu_OpenDrawWindow 0x4ADD10
4 Shot ammo list BattleMenu_OpenShotWindow 0x4C8220
5 Slot BattleMenu_OpenSlotWindow 0x4C7920
6 Blue Magic list BattleMenu_OpenBlueMagicWindow 0x4C81C0
7 Limit list (Fire Cross / Sorcery / Limit) BattleMenu_OpenLimitListWindow 0x4C8190
8 Combine BattleMenu_OpenCombineWindow 0x4C81F0
any other none — falls through straight to target selection BattleMenu_OpenTargetSelection 0x4C7030

Magic list id 0 also carries a mode argument read from the command itself: Double opens it in ×2 mode, Triple in ×3 mode, everything else (including the plain Magic command) in ×1 mode.

Status window flags

Entries picked from a submenu carry their own copy of bits 0x80/0x40 (the ally-status-window pair above): Magic byte 0x09, Junctionable GF byte 0x08, Blue Magic byte 0x08, Shot byte 0x09 and Temporary-character limit breaks byte 0x09 (the last two were long documented as the “inert high byte” of a 2-byte animation value — Battle_applyDamage indeed ignores it, but BuildLimitCommandMenu reads it into the limit list entry’s status-window slot). When the player confirms a spell/GF/limit in the list, that byte is passed to the target cursor in the same slot a command’s Menu flags byte goes (confirm path: list entry → target-cursor struct +36 → sub_4B1E70 → BattleHUD_StatusWinOpenRequest/DetailMode; the low 6 bits are dead on this path).

Retail values are deliberate design, matching each spell’s purpose:

Value Meaning Retail users
0x00 Show the party HP panel while targeting Cure, Cura, Curaga, Life, Full-life, Regen
0x40 Show the panel in ailment-detail mode (cycles each character’s active statuses) Esuna, Dispel, Protect, Shell, Reflect, Aura, Double, Triple, Haste, Float
0x80 Panel hidden All offensive spells; all 16 GFs
0xC0 Panel hidden (bit 0x40 inert while 0x80 is set) Slow, Stop, Blind, Confuse, Sleep, Silence

GF/ Magic / Item Type damage

Value Description
0x00 Magic unmissable
0x01 % Current HP
0x02 GF damage
0x04 Diablos damage
0x05 GF damage ignore SPR
0x06 Magic ignore SPR and unmissable
0x07 Curative magic
0x09 White wind (Quistis blue magic)
0x0A Magic damage
0x0A Depends HIT% (100*Power-Hit%)
0x0C Target Current HP - 1 (Moomba)
0x0D Based on GF level (Cactuar)
0x0E Curative item
0x0F Angelo recover
0x11 ?
0x12 1 HP (Excalipoor)

enum GFMagicDamageType : __int8 { GF_MAGIC_DAMAGE_TYPE_MAGIC_UNMISSABLE = 0x00, // Magic unmissable GF_MAGIC_DAMAGE_TYPE_PERCENT_CURRENT_HP = 0x01, // % Current HP GF_MAGIC_DAMAGE_TYPE_GF_DAMAGE = 0x02, // GF damage GF_MAGIC_DAMAGE_TYPE_DIABLOS_DAMAGE = 0x04, // Diablos damage GF_MAGIC_DAMAGE_TYPE_GF_DAMAGE_IGNORE_SPR = 0x05, // GF damage ignore SPR GF_MAGIC_DAMAGE_TYPE_MAGIC_IGNORE_SPR_AND_UNMISSABLE = 0x06, // Magic ignore SPR and unmissable GF_MAGIC_DAMAGE_TYPE_MAGIC_DAMAGE = 0x0A, // Magic damage GF_MAGIC_DAMAGE_TYPE_UNKNOWN = 0x11 // (Unknown) };

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