This is a hell of a common power in the series. It comes in all different colors when used, and all different ways of damaging an amount of health. This power is a bit weaker than a Plasma Ball & Kama Blast. It was fist used by No Face in the series against Mario. Then secondly used by Error Weegee as seen on the left image. It was third used by Weegee, and he used it to blast away another one of these blasts from Error Weegee. The most common color seems to be white. Malleo has a weird way to blast it out of his eyes.
COLORS
Error Weegee/Yellow
Aaron/White
Weegee/White
No Face/Black
Malleo/White
AGK/White
Cone Head/White
Scarlett/White & Green
Negative Mario/Black
Isabella/White
Merlylin/Black
Siren Head/Black
Giganeegee/White
Thyeye/Blue
Luke Wok/White