Like Spider-Man, his clinging ability is because of the Van der Waals force, but also left a distinctive scarring into surfaces (and people), which he calls the "Mark of Kaine". After defeating an enemy, usually resulting in death such as breaking their neck using his superhuman strength, he would burn the "Mark of Kaine" onto their face. Notable characters to have been defeated in such a fashion include Doctor Octopus (that was later resurrected). This ability also allows him to melt Spider-Man's webbing, and on at least one occasion he was able to use this 'talent' to cauterize a potentially fatal throat wound. Additionally, Kaine possesses a retractable bone spike on the underside of each forearm behind the wrist, which he calls the "Sting of Kaine", reminiscent of Wolverine's bone claws, though their exact composition is unknown.