Kangaroo

Amazing Spider-Man #126

by Ross Andru, 1973

While wandering the streets of New York, the Kangaroo is approached by one Dr. Jonahs Harrow. Dr. Harrow enhances the Kangaroo's natural, uh, "kangaroo" abilities with mechnical devices attached and wired into the Kangaroo's brain. After a 7-hour operation in Harrow's tenement loft, the Kangaroo is able to punch through concrete and leap over a hundred yards in the air. As the Kangaroo relishes in his enhanced abilities, Dr. Harrow tries to explain his plan. The Kangaroo has other ideas however and shoves Dr. Harrow aside.

The Kangaroo trackes down Spider-Man and ambushes him. The Kangaroo manages to get the upper hand in a fight, but before he can finish Spider-Man, he's overcome by crippling pain in his head. Dr. Harrow installed a fail safe device in his brain that allows him to transmit instructions to the Kangaroo and cripple him with head pain. The Kangaroo leaps away leaving Spider-Man behind.

The Kangaroo returns to Dr. Harrow's loft. Dr. Harrow gives the Kangaroo his orders, and the Kangaroo bounces off in search of some radioactive isotopes for Dr. Harrow. He arrives at a special lab by the Hudson River. His new power allows him to smash through the lab's wall and subdue the security forces inside. Spider-Man is alerted to the break-in, and he arrives on the scene. Spider-Man tries to warn the Kangaroo about the isotopes and the gamma radiation they are emitting. The Kangaroo assumes this is a trick on the part of Spider-Man, and charges into the sealed storage room where the isotopes are kept. The Kangaroo only takes a couple of steps into the room before he is overcome by the gamma radiation, collapses, and dies in the radioactive storage room.