A kind of gun-arm, a type of weapon from another world, that greatly boosts physical and magical power when equipped. It is said that the leader of a resistance group used this gun-arm to fight against Shinra Inc, a corporation trying to use the planet's life force as energy.
It provides 98 Attack, 108 Atk%, 49 Magic, and 4 linked Materia slots with Nothing growth. It deals damage equal to the following formula, dealing more damage the more AP is on the weapon:
- $ [1 + ( Total AP on Weapon / 10,000 )] / 16 $
This is then modified by the attack's power, for normal attacks, the multiplier is 1.0. Note that unlike most other damage modifiers, each character's ultimate weapon applies the damage modifier after all other modifiers, instead of modifying the attack strength of the weapon itself.
To achieve a base 1.0 damage multiplier, the weapon needs to have approximately 150,000 AP on it. To reach the 4x damage multiplier that most characters have with their ultimate weapons, the weapon needs to have approximately 630,000 AP on it.
Materia that do not add to the value are the Underwater, Master Magic, Master Command, Master Summon, and Enemy Skill Materia. Much like Vincent's Death Penalty, it is possible to induce the overflow glitch with this weapon if at least 8 mastered Knights of Round Materia are equipped on the weapon, among other conditions.
Missing Score is a Gun obtained as Barret's Trust Master. It provides 107 ATK, 98 MAG, and MP +10%.
A missing score is an unidentified variable within algebraic mean equations used in analyzing mass consensus to determine a general average. The name reflects Missing Score being a weapon of variable power improved upon additions of customizable Materia, and as a weapon that stands out as its output exceeds average means.