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The Lost Number is an optional boss in Final Fantasy VII. After entering the right combination for the safe in the Shinra Mansion, it will attack the player party. The combination is: (Right 36), (Left 10), (Right 59), (Right 97).
After its defeat, the player obtains Cosmo Memory, the Odin Materia and a key to the mansion's basement, which can be used to recruit Vincent to the party.
Since Lost Number drops the unique and (normally) non-duplicatable Cosmo Memory, the player may want to duplicate it by means of the repeating boss glitch that allows one to fight bosses twice. To do this the player must skip a random battle by opening the menu the instant the game wants to give a random encounter on a field map. There is no particular benefit to having more than one Cosmo Memory item, however.
Stats
Base
Magical
Physical
Formations
| # | Formation |
|---|---|
| 576 | Lost Number, Lost Number, Lost Number |
| 577 | Lost Number, Lost Number, Lost Number |
| 578 | Lost Number, Lost Number, Lost Number |
| 579 | Lost Number, Lost Number, Lost Number |
Locations
| Shinra Mansion | |
|---|---|
| 2f. West | 576 (event) |
Battle
The Lost Number is a powerful boss consisting of two halves: the purple half, which performs physical attacks, and the red half, which casts magic. After reducing his HP below 3,498, the Lost Number will change completely into one of his sides.
The Lost Number changes depending on the attack that caused the reduction:
- If the damage was inflicted by a magic attack, Lost Number will turn red and gain a substantial increase in its Magic and Magic Defense stats. It will attack with powerful magic from then on. In this state, it has lower DEF, so the party should use physical attacks.
- If the damage was inflicted by a physical attack, Lost Number will turn purple and gain a boost in Attack and Defense. It will attack with strong physical attacks from then on. This form has low MDEF, so the party should attack with spells. This form is dangerous because he may inflict over 2400 damage with Lost Blow.
- If the damage was inflicted via Poison, no effect will happen until Lost Number takes a physical or magical attack. Thus, if the player chooses to defeat Lost Number with Poison only, he will never change form.
Strategy
Lost Blow.
The player can decide which form they want to take on, the magic-using form or the physical-using form; the physical side uses Lost Blow, which is powerful but hits only one party member. If the player has obtained Cloud's Limit Break Cross-slash, or Aeris's Limit Break Seal Evil, they can be used to paralyze the Lost Number.
AI script
- Original form
AI: Setup {
- Count = Rnd(0..2)
- SpclChance = 6
} AI: Main {
- If (Count == 0) Then
- {
- Choose Random Opponent
- Use <Punch> on Target
- If (Rnd(1..SpclChance) == 1) Then
- {
- Choose Random Opponent
- Use <Punch> on Target
- }
- 1/3 Chance: Count = 2
- 2/3 Chance: Count = 1
- } Else If (Count == 1) Then {
- Choose Random Opponent
- Use <Punch> on Target
- If ((Target doesn't have Death Status)
- & (Rnd(1..SpclChance) == 1)) Then
- {
- Choose Random Opponent
- Use <Punch> on Target
- }
- 1/3 Chance: Count = 2
- 2/3 Chance: Count = 0
- } Else {
- If ((Lost Number's MP >= 22)
- & (At Least One Opponent doesn't have Reflect)) Then
- {
- Choose Random Opponent without Reflect
- Use Bolt2 on Target
- } Else {
- Choose Random Opponent
- Use <Punch> on Target
- }
- If (Rnd(1..SpclChance) == 1) Then
- {
- If ((Lost Number's MP >= 22)
- & (At Least One Opponent doesn't have Reflect)) Then
- {
- Choose Random Opponent without Reflect
- Use Bolt2 on Target
- } Else {
- Choose Random Opponent
- Use <Punch> on Target
- }
- If ((Lost Number's MP >= 22)
- }
- 1/2 Chance: Count = 0
- 1/2 Chance: Count = 1
- If ((Lost Number's MP >= 22)
- }
} AI: Counter - General {
- If ((Lost Number's HP <= 3 * [Lost Number's Max HP / 6])
- And (SpclChance == 4)) Then
- {
- SpclChance = 3
- } Else If ((Lost Number's HP <= 4 * [Lost Number's Max HP / 6])
- And (SpclChance == 5)) Then {
- SpclChance = 4
- } Else If ((Lost Number's HP <= 5 * [Lost Number's Max HP / 6])
- And (SpclChance == 6)) Then {
- SpclChance = 5
- } Else {
- SpclChance = 6
- }
} AI: Counter - Death {
- Remove Lost Number <Type B>
- Remove Lost Number <Type C>
} AI: Counter - Physical {
- If (Lost Number doesn't have Sleep, Stop or Paralyzed Status) Then
- {
- If (SpclChance <= 3) Then
- {
- Choose Self
- Use <> on Target
- Activate Lost Number <Type C>
- Copy Lost Number's Stats to Lost Number <Type C>
- Remove Self
- }
- }
} AI: Counter - Magical {
- If (Lost Number doesn't have Sleep, Stop or Paralyzed Status) Then
- {
- If (SpclChance <= 3) Then
- {
- Choose Self
- Use <> on Target
- Activate Lost Number <Type B>
- Copy Lost Number's Stats to Lost Number <Type B>
- Remove Self
- }
- }
}
- Magical form
AI: Main {
- 1/7 Chance:
- {
- Choose Random Opponent
- Use <Tentacle> on Target
- }
- 2/7 Chance:
- {
- If (At Least One Opponent doesn't have Reflect Status) Then
- {
- If (Lost Number's MP >= 36) Then
- {
- If (At Least One Opponent
- has neither Reflect nor Poison Status) Then
- {
- Choose Random Opponent with neither Reflect nor Poison Status
- } Else {
- Choose Random Opponent without Reflect
- }
- Use Bio2 on Target
- If (At Least One Opponent
- } Else {
- Choose Random Opponent without Reflect with Highest MP
- Use Aspil on Target
- }
- } Else {
- Choose Random Opponent
- Use <Tentacle> on Target
- }
- }
- 2/7 Chance:
- {
- If (At Least One Opponent doesn't have Reflect Status) Then
- {
- If (Lost Number's MP >= 22) Then
- {
- Choose Random Opponent without Reflect
- Use Bolt2 on Target
- } Else {
- Choose Random Opponent without Reflect with Highest MP
- Use Aspil on Target
- }
- } Else {
- Choose Random Opponent
- Use <Tentacle> on Target
- }
- }
- 2/7 Chance:
- {
- If (At Least One Opponent doesn't have Reflect Status) Then
- {
- If (Lost Number's MP >= 28) Then
- {
- Choose Random Opponent without Reflect
- Use Quake2 on Target
- } Else {
- Choose Random Opponent without Reflect with Highest MP
- Use Aspil on Target
- }
- } Else {
- Choose Random Opponent
- Use <Tentacle> on Target
- }
- }
}
- Physical form
AI: Main {
- 1/4 Chance:
- {
- Choose Random Opponent
- Use Lost Blow on Target
- }
- 3/4 Chance:
- {
- Choose Random Opponent
- Use <Punch> on Target
- If (1/2 Chance) Then
- {
- Choose Random Opponent
- Use <Punch> on Target
- }
- }
}
Other appearances
Final Fantasy Record Keeper
_FFVII.png "FFRK Lost Number (Magic Form) FFVII.png (2 KB)")
_FFVII.png "FFRK Lost Number (Physical Form) FFVII.png (2 KB)")
'Lost Number' Appears as the area boss of the FF(VII) 'Nibelheim' (Difficulty 55) record.
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Behind the scenes
The Lost Number's name and appearance, as well as the location where it is fought, all imply that it is one of Professor Hojo's experiments, and most likely a failed experiment given that it does not have a number.
The Lost Number's appearance is similar to that of the Chocobo Eater from Final Fantasy X.