From the Super Mario Wiki
Retrieved from "https://www.mariowiki.com/index.php?title=Charge_Blast&oldid=2360041"
Charge Blast is the default neutral special move of the Mii Gunner in Super Smash Bros. for Nintendo 3DS / Wii U, functionally identical to Samus's Charge Shot. The Mii Gunner charges up a blast when the button is pressed, and will fire it by pressing the button again or stop charging by tilting the control stick to roll or pressing the grab or shield buttons. Finally, by pressing the button in midair, the Gunner will automatically fire a projectile without charging.