Diosaurus

Diosaurus is a very dickish Kaiju and one of T-Rex's old enemies. He appeared in the second episode of The Mentally Insane Adventures of T-Rex.

Appearance
Diosaurus resembles a dinosaur but with the head of Dio from Jojo's Bizarre Adventure. Because that's exactly what he is.

Past Stuff
Diosaurs was a childhood friend/rival of T-Rex after T-Rex's family took him in. They got along pretty well over the years until Dao's father died under mysterious circumstances. For some stupid reason, Diosaurus vowed revenge against the T-Rex family, going as far as to hire the Purple Man to kill T-Rex's father. This led to Diosaurus and T-Rex becoming mortal enemies, just like T-Rex's other mortal enemies. Regardless, the two fought for about the length of an anime until Diosaurus disappeared, and would not be seen again for many years.

The Mentally Insane Adventures of T-Rex
In the second episode of the series, Diosaurus makes his return, apparently having gone to Japan and taken up a career in anime, returning to Monster Island but finding it destroyed, Diosaurus went over to the nearby New Monster Island where he encountered T-Rex and Lady T-Rex. Apparently T-Rex had given Diosaurus's anime a bad review on yelp, prompting him to return and enact his revenge. Before he could do so he was attacked by T-Rex's friends. After T-Rex had a long flashback, Diosaurus came out of nowhere and attacked him again, resulting in a "To Be Continued" similar to a certain Jojo meme. However after T-Rex got into an argument with the author, the fight continued briefly with Diosaurus being blasted away by Godzilla at the end of the episode.

Abilities

 * Diosaurus has longer arms than T-Rex, and is therefore better at combat stuffs.
 * Diosaurus can appear out of nowhere seemingly at will
 * Dioium Ray. Diosaurus can fire a beam of trippy colored energy from his mouth.
 * Anime Eye Beam. Diosaurus can also fire beams from his eyes.
 * Diosaurus can continuously be an asshole no matter how many people tell him off.

Trivia

 * Diosaurus is an obvious parody of Dio from Jojo's Bizarre Adventure. As such his entire character is basically Dio.
 * Diosaurus also references the overused "But It was I, Dio!" meme, constantly proclaiming himself as "I, Dio."