The character is a small chimpanzee named Toto who was sent into space for test flight, at which point an exposure of combined rays have made him grow to gigantic size and gave him kryptonite-like powers.

In 1978, Martin Pasko brought Titano back for a two-part story with the Atomic Skull in Superman #323 and 324 — a story that Pasko looked back on with regret, as revealed in interview from 2007: "I thought — foolishly, in retrospect — that I might be able to treat a giant ape that shot kryptonite energy from its eyes with the same straight face I brought to Bizarro.

[4] Originally named Toto, a chimpanzee who was dubbed "one of the world's most intelligent chimps," Titano was rocketed into space and bombarded by the combined radiation from two elements, which mutates him into a giant ape with Kryptonite-based abilities.

[5] A year later, Superman accidentally transports Titano back to modern Metropolis, and has to trick him to return him to the past.

[6] Over the next few years, Titano is visited in the past by several characters, including Superman,[7] Krypto the Superdog,[8] Bizarro,[9] and Jimmy Olsen.

[10] After another trip through time into the present day, Titano is picked up by Allura, the ruler of a world of giants, who arranges to transport him to her home planet.

This lab is headed by Dr. Thomas Moyers, an irresponsible man who caused the creation of Rampage; Amanda Waller; and Sarge Steel.

[14] Another version of Titano appeared as the mascot of a pizzeria before being discontinued after Turtle Boy (played by Jimmy Olsen) proved to be more popular.

[21] In the "Dawn of DC" initiative, Titano attacks a nuclear power station before being defeated by Starfire and Donna Troy.

As Titano, his size and strength are many times greater than a normal human being and he can project kryptonite beams from his eyes.