After Cropolite was defeated in the Notre Dame Cathedral, he shrunk, lost many of his powers and vanished to his dimension. He crossed again to the dimension of the real world and ended up in Monkaya by a space-time hole left behind by the explosion of the Ozor Mox's space ship exploding. The Monkayans immediately made him their king because of his powers. He enslaved them in a not-so-evil way and made Gondoron his pet. Gondoron eventually managed to escape the planet (to where he was sucked by a black-hole and ended up in the Mecha-Cobra Universe) and Cropolite ordered all of Monkaya's defenses be stronger. In The Story of the Monkayans, Cropolite gets killed around three times in the entire series.
The Cropolite, referred to as the Portal Daemon in storyline, is a large grayish, green and brown demon with clawed hands and hooves. His larger, unplayable incarnation, the Portal Daemon, traveled into Notre Dame Cathedral from a different dimension. He is fossilized demon feces brought to life by the Time Splitters evil aura.
Portal Daemon was a giant demon summoned by Jacque de la Morte or having entered this dimension through spacetime rifts opened by the TimeSplitters and Jacque de la Morte's meddling with the Time Crystals. It was said the full moon signaled his entrance.
After Viola and Mister Underwood ventured from the underground to the cathedral rooftops to defeat Jacques, the Portal Daemon entered and appeared.
The Portal Daemon attacks by firing missile-like lasers from its eyes.