A Ray Gun can be shot 16 times before it runs out of ammunition. Each shot does minor damage (between 2-4% in Melee and Brawl but 10% in Smash 64). One of the better combo weapons, it causes enough knockback to juggle an opponent multiple times, and can even be used to KO an offstage opponent at low damage percentages if the shots are timed correctly, as well as carry an opponent past the side blast lines on stages with walk-off blast lines, especially in Brawl. It has much higher knockback and damage in Smash 64 than in Melee and Brawl. One of the available bonuses in Melee is "Laser Marksman", which means every blast from a single gun made contact with an enemy. The Ray Gun's projectiles can be reflected or absorbed, while the gun itself (when thrown) can only be reflected. Like other shooting items in Brawl, characters can move while firing. In Ultimate, its lasers launch at a more vertical angle in order to prevent sideways kills that could be done in previous titles.
In Brawl, the momentum of a projectile will affect the damage a character will receive; these are recorded in bounces. Note: The Ray Gun will not bounce twice on some throws that have too little momentum, making some second bounces unable to be recorded.
Equipping the Walker, EVA, Axl, Sharla, Octoling Octopus or Fighting Alloy Team Support Spirits will give the player a Ray Gun at a start of a match.