Batman

Bat-Equipment!: The array of devices in the utility belt have also become more complex over time. The simple coiled rope and batarang scaling equipment became a rocket powered (or compressed air powered) grapple gun, the cowl was updated with night-vision lenses and communication equipment (using one of the ears to house an antenna), and a device to attract the bats from the Batcave was installed in the heel of one of the boots. The suit has also carried on different occasions a re-breather device, flash and gas grenades, explosives and a detonator, lockpicks, a signalling device for the Batmobile, electronic surveillance equipment, a forensic kit for gathering crime scene evidence, a medical kit, and, in early incarnations, a pistol in a holster. On any occasion where Batman anticipates encountering Superman, he has also carried a Kryptonite ring given to him by the Man of Steel as a weapon of last resort.