Due to exposure to atomic radiation, Doctor Octopus has acquired the mental ability of psychokinetic control over the four electrically powered, telescoping, prehensile, titanium -steel artificial tentacle "arms" (a degree of psychokinetic control over them that he can also exercise over vast distances even when they are not connected to him) that are attached to a stainless-steel harness encompassing his lower torso. Each of these four arms is capable of lifting several tons, provided that at least one arm is used to support his body. The reaction time and agility of his mechanical appendages are enhanced far beyond the range attainable for normal human musculature. The arms allow Octavius to move rapidly over any terrain and to scale vertical surfaces and ceilings. He has developed his concentration and control to the point that he can engage a single opponent, like Spider-Man, or multiple opponents with the arms while performing a completely separate, more delicate task, such as stirring coffee or constructing a machine. Due to his weight and age, his opponents are often lured into a false sense of security, only to find he is a formidable combatant. He has managed to force opponents as formidable as Spider-Man, Daredevil, and Captain America to take up a defensive position in a fight.