Spider man used to be my superhero as a kid
Used to be? Not anymore? Haha. Spiderman is a fictional superhero made famous my Marvel Comics with all his comic books. 
Sure! I'm no longer a kid! Now an adult with better preference, hope you understand? Well who invented the character?
The inventors are Steve Ditko and Stan Lee and Spiderman was first debuted in 1962.  
What's the name of the spiderman character when In human form?
raised by his Aunt May and Uncle Ben in New York City after his parents Richard and Mary Parker were killed in a plane crash. Lee and Ditko had the character deal with the struggles of adolescence and financial issues, and accompanied him with many supporting characters, such as J. Jonah Jameson, Harry Osborn, Max Modell, romantic interests Gwen Stacy and Mary Jane Watson, and foes such as Doctor Octopus, Green Goblin and Venom. His origin story has him acquiring spider-related abilities after a bite from a radioactive spider
Kid Kaiju
Kid Kaiju (Kei Kawade) is a fictional superhero appearing in American comic books published by Marvel Comics. The character is an 11-year-old Japanese American boy of Inhuman heritage who has the ability to summon monsters that he draws. His name comes from "Kaiju", which is a term used meaning "strange beast" commonly in Japanese movies. He was the primary focus of the Marvel event series "Monsters Unleashed".
Publication history.
The character was created by Greg Pak, Frank Cho