ジョジョの奇妙な冒険
JoJo's Bizarre Adventure - Easter Eggs & Hidden Details
Easter Eggs
Numerous characters and their abilities (Stands) are direct references to Western popular music.
This is the most prominent and pervasive 'easter egg' in the series. Examples include: Josuke's Stand "Crazy Diamond" is a reference to the Pink Floyd song "Shine On You Crazy Diamond." Yoshikage Kira's Stand "Killer Queen" and its abilities "Sheer Heart Attack" and "Bites the Dust" are all named after Queen songs/albums. Entire character names are references, such as Robert E.O. Speedwagon (REO Speedwagon), Will A. Zeppeli (Led Zeppelin), and Dio Brando (Ronnie James Dio/the band Dio).
Foreshadowing in the Opening Animations
Each season's opening sequence is filled with subtle hints about future plot points. For example, in the second opening for "Stardust Crusaders," Dio's Stand "The World" appears as a shadowy figure behind him for a single frame, long before it is revealed in the story. In the final episode's version of the opening, Dio is defeated and Star Platinum takes his place, signifying the turning of the tables.
The manga artist character Rohan Kishibe is a self-insert of the series creator.
Rohan Kishibe, introduced in Part 4, is a highly successful and eccentric manga artist obsessed with realism for his work. He is widely considered to be a self-insert or an author avatar for Hirohiko Araki himself. This is further supported by the spin-off series "Thus Spoke Kishibe Rohan," where Rohan takes the role of a narrator exploring various supernatural phenomena, similar to Araki's own role as the storyteller of the bizarre.