The Eraser Gun involves launching a beam of chi from the mouth. There are many variations of the technique used by many different characters, such as Piccolo, Nappa, Dodoria and Gotenks. The attack was only named once as Eraser Gun when used by Reacoom on Namek.
Dragon Ball OnlineEdit
This skill is learn-able from level 30 by Shadow Knights.
This is an HTB skill that involves an Eraser Gun about mid-way through. It is learn-able by Warriors from level 30.