In the original Kirby's Adventure, Kirby fires lasers from his hand. But in the remake, Kirby gains a high-tech visor capable of firing lasers. This idea has been in Kirby games ever since. In all appearances, Laser Kirby fires lasers, which he can use to fire at enemies and can ricochet off slopes with those lasers.
Kirby shoots a laser. The laser will ricochet off slopes.
Heat, only in Squeak Squad.
Big Laser Blast
Hold B, release
Kirby fires a regular laser, then fires a bigger laser. Can only be used after obtaining the Laser Scroll.
-Light Amplification by Stimulated Emission of Radiation-
And it ricochets off hills, too!”
In Super Smash Bros. Brawl, when Kirby inhales R.O.B. and gains his ability, the hat resembles Laser's visor and the attack is pretty much the same, except it can also ricochet off of flat surfaces as well as sloped surfaces and its range becomes limited if used constantly. Kirby even makes a similar sound to the Laser ability when he fires the laser.
The color of Kirby's laser beam changes to match his body color of any spray paints that are applied to his body.
Although Laser didn't directly appear in Kirby's Dream Land 3, if Spark Kirby and Chuchu teamed up Kirby would gain an ability that behaved exactly the same as Laser, except it could be charged. This charge would later make an appearance in Kirby: Squeak Squad.
The first sentence of Laser's flavor text in Nightmare in Dream Land and Kirby & the Amazing Mirror treats the word "laser" as an acronym.