From SmashWiki, the Super Smash Bros. wiki
infinite Super Scope glitch is a glitch in that allows players to shoot the Super Smash Bros. Melee Super Scope a seemingly infinite number of times, including charged shots.
Contrary to the name, the infinite Super Scope glitch does not give the Super Scope truly infinite ammo; rather, it gives it a ridiculously large number of shots to the Super Scope, giving the idea of infinite ammo.
How to perform [ edit ]
Fire 15 individual shots from the Super Scope. (5 sets of 3 shots seems to be easiest, as just tapping the fire button once always results in a volley of three shots)
Fire two fully charged shots from the Super Scope.
Finally, charge one more shot and have someone attack the player before they fire. Doing it too early or too late will result in the weapon being empty.
Explanation [ edit ]
From a programming standpoint, a coding oversight could be to blame for this glitch.
The 15 individual shots, plus the two fully charged shots, bring the Super Scope's ammo to nearly zero.
Charging a shot deducts ammo from the reserve. Overcharging drives the number below 0.
If the game is not properly programmed, instead of remaining below 0, the ammo count will
rollover to an extremely high value (for example, 65,535).
The character gets attacked and the shot is never fired. The ammo remains extremely high.
Thus, if the game does not realize there has been a rollover, the Super Scope will receive far more ammo than a player can count - a seemingly infinite amount.
The infinite Super Scope glitch is most well-known as being a necessary step in completing the
black hole glitch.