So Teknoman/Tekkaman Blade has this weapon called the Teknobomb/Voltekker (Voltekka).
Kinda cool, yeah? Of course, since this is the second Tekkaman, and the Japanese are very slavishly conventional and give every sequel guy an imitation of everything the original had, it means the original also had a Voltekker, right? So let's take a look:
BOOM! HEADSHOT! Heh heh heh heh.
So how does a little whirly fan blade shot from the forehead evolve into a gigantic multicolored storm of energy blasts fired from big shoulder weapons? The world may never know.