- Ben 10: "what if... the Omnitrix got damaged and exploded near Gwen and Max" (any time in 2005 series)

the Omnitrix exploding caused its tech, energy and D.N.A to fuse into Ben, Gwen and Max, alerting Azmuth in the process so he would come to help/save them.

Ben's arm is destroyed but he becomes fused with the Omnitrix, his arm becomes pure energy and gains the use of all the Omnitrix functions including the alien D.N.A it holds, no longer needing to fully transform into the alien to use their abilities, along with having cyber enhancements implanted into him by Azmuth.

Gwen's Anodite D.N.A if forcibly awakened from the tech/energies infused into her and she becomes infused with the D.N.A of a Galvan (Grey Matter), a Galvanic Mechamorph (Upgrade) and a Ectonurite (Ghostfreak), increasing her intelligence and learning abilities greatly along with tech manipulation and ghostly powers, she becomes a master of both mystical and technological aspects.

Max was not as lucky, his limbs and aged old body was very damaged so he had to have half his body replaced with tech, but he did gain the D.N.A of a Arburian Pelarota (Cannonbolt), a Florauna (Wildvine), a Lepidopterran (Stinkfly), a Loboan (Blitzwolfer), a Opticoid (Eye Guy) and a Piscciss Volann (Ripjaws), turning him into the ultimate hunter cyborg that can hunt down anything anywhere, though he does tend to relax and use his abilities for his cooking.