DRAGON BALL Red Ribbon Scans

What happened is that the Earthlings had began to develop techniques similar to what other aliens had already done years before them. This is why Vegeta & Freeza have similar attacks similar to Krillin's Kienzan, why the Crane School's Dodan Ray is similar to Freeza's Death Beam, & why the Kamehameha that Roshi invented was similar to the Galick Gun that Vegeta used.

It's more that it's a bit like a buzz saw lined with razor blades, honestly. It's a technique that does, at first, take a significant amount of his energy to make, but the thin edges combined with the serrated edge and spinning motion, is used to slice through most anything. There's a paper on how buzz saws work and manage to cut through different kinds of wood if you wanna get into the technicalities of how it could work, but the TL;DR version is basically geometry + sharpness + spin = energy efficiency. So basically, Krillin is secretly a nerd who decided to work smarter with his energy, not harder.

We need to go back and correct all the comics that had her tagged.

See! Ik I'm not the first person to see the similarities, but I thought it was interesting.

Dragonball Master Chef n°1