Huh, that's a tough one... Are we given full artistic licenses here? If so...
![Zelda :ultzelda: :ultzelda:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
- Fires her light arrow directly through the victim's sternum, creating a gap in their chest with burning flesh. The arrow phases out of reality with the Triforce of Wisdom taking its place. It then emulates the effect of a black hole, which brutally absorbs the victim into a triangular mess of viscera, until the victim ceases to exist.
![Ike :ultike: :ultike:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
- Grabs the victim and busts their left tibia wide open with a violent kick, exposed bones and all, then caves their skull in with a powerful head bash. Afterward, he tosses them high in the air and performs Aether, having Ragnell act as a spinning buzzsaw of death as they're being sliced in half. Ike catches Ragnell in the air to cut them up into more chunks until only their disfigured head stays afloat, and cleaves it in half on the way down.
![Mega Man :ultmegaman: :ultmegaman:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
- Chucks several Metal Blades at the victim like a bunch of shuriken, embedding the weapons into their body. He aims the Black Hole Bomb above them, then follows it up with a slide kick to pick them off into the air while shooting at the blades with his pellets. The Metal Blades that are still stuck on them slowly tear through their flesh as the hole absorbs them through the victim. As the hole slowly tears their body apart, Mega Man charges his Mega Buster and fires at them, causing them to explode into bloody chunks (which in turn are absorbed into the Black Hole Bomb).
Disclaimer: I'd actually hate to see my Mains resort to gruesome violence.