Shinnosuke Nohara

Shinnosuke "Shin-Chan" Nohara (野原 しんのすけ Nohara Shinnosuke) transforms into Kamen Rider Shin-O (仮面ライダーしん王 /Kamen Raidā Shin'ō) in the special episode of Crayon Shin-chan initially played as part of a full hour special titled ''Crayon Shin-chan Midsummer Night: Here I Come! The Storm is Called Den-O vs. Shin-O 60 Minute Special!! (クレヨンしんちゃん　真夏の夜に　オラ　参上！　嵐を呼ぶ　電王ＶＳしん王　６０分スペシャル！！ Kureyon Shinchan Manatsu no Yoru ni Ora Sanjō! Arashi o Yobu Den'ō VS Shin'ō Rokujuppun Supesharu!!''?) that aired on August 3, 2007. It featured a crossover between Shin-chan and the tokusatsu series Kamen Rider Den-O, as well as three normal summer-themed episodes. The Den-O characters are drawn in the style of Shin-chan's regular characters.

To tie in with the special episode, Bandai produced figures of Den-O, Momotaros, Shin-O, and Buriburizaemon as they appeared in the episode.

Biography
When Misae is trying to get Shin-chan ready for the bus on time, he suddenly has to go to the toilet. As Misae pleads to him to hold it in until he gets to school, Shin-chan manages to get inside, but instead of the toilet he finds himself on the DenLiner and on Ryotaro's face. He quickly becomes smitten with Hana and Naomi, much to their chagrin, while everyone tries to figure out why Shin-chan has managed to get on the DenLiner. Back in the Nohara house, Misae bangs on the door as the Fatass Imagin tries to grant Misae's wish, which is to get Shin-chan to the bus on time.

Back on the DenLiner, Hana realizes that it must be due to an Imagin, which Shin-chan mispronounces as "Himajin" (ヒマジン?, "Bored Person"), including calling Momotaros a red Buriburizaemon, who Momotaros identifies (and summons) as the legendary Imagin. When Ryotaro transforms into Kamen Rider Den-O Sword Form so they can defeat the evil Imagin that has appeared, Shin-chan jumps up and manages to transform with him into Kamen Rider Shin-O. When the door opens on Misae, she is insulted by Momotaros just as the Fatass Imagin attacks the group. Den-O takes a beating until Shin-O glues the Fatass Imagin's three fat asses together, leading the Imagin to want to go back in time to erase any day Shin-chan was on time, only to find none exist.

Den-O destroys the Fatass Imagin, saving Shin-chan and Misae who leave just in time to find that the bus has left without them. The Owner, impressed by how Shin-chan has helped them protect the flow of time, allows Misae and Shin-chan to go back in time to just before the bus arrived. Bidding farewell to their new friends, Shin-chan realizes he still has to use the toilet, but while fighting with Misae to get to the toilet, soils himself just as the bus rolls up.