When used, the Gunner fires an energy shot that erupts into a pillar of flame that lingers for a few moments. The move shares properties of both Ness and Lucas's versions of PK Fire, alongside Robin's Arcfire: like Ness, the Gunner fires the move slightly downward if standing on the ground, but around 45° downward if in midair. In Smash 4, the move functions like Lucas's PK Fire, knocking back opponents instantly instead of trapping them in the fire. Like Robin, and unlike either Ness or Lucas, the shot can also erupt by hitting the stage.
Similarly to Lucas' PK Fire, hitting an opponent directly with the initial shot counts as two hits: one for the shot, and one for the fire. Connecting with the move this way also makes the sound effect for being hit by a magic effect attack.
In Ultimate, the move now traps opponents in the fire pillar (functioning much more like Robin's Arcfire and Ness's PK Fire), and it no longer autocancels. Its new multi-hit nature also means that the attack deals more damage overall than it used to. However, the move's endlag has also been increased.
Special Move customization was added in Super Smash Bros. 4. These are the variations: