When you can't even reference anything outside of Phantom Blood

6 Best Musical References in 'Jojo's Bizarre Adventure

A Letter From the Past (Episode), JoJo's Bizarre Wiki

Some surviving shots of Jonathan vs Dio in the lost Phantom Blood Movie (2007) : r/StardustCrusaders

What is a reference in Jojo that everyone didn't realize? - Quora

Jodio Joestar - JoJo's Bizarre Encyclopedia

Johnny Joestar - JoJo's Bizarre Encyclopedia

Bizarre Adventures, Part One: Is 'Phantom Blood' Any Good?

Apparently, the lost phantom blood movie might've been found (not posted yet so don't get too excited.) : r/StardustCrusaders

Jonathan Joestar - JoJo's Bizarre Encyclopedia

Phantom Blood was boring despite being important. Change my mind. : r/ShitPostCrusaders

JoJo's Bizarre Adventure: Golden Wind - Wikipedia

6 Best Musical References in 'Jojo's Bizarre Adventure

Phantom of the Mall' and 'The Initiation' - A Slasher Double Feature to Celebrate 45 Years of Mall Horror - Bloody Disgusting

JoJo's Bizarre Adventure: Part by Araki, Hirohiko

JoJo's Bizarre Adventure: Part 3--Stardust Crusaders (Single Volume Edition), Vol. 6: Stardust Crusaders (6)

Phantom Blood Movie Jonathan Joestar Screenshots : r/StardustCrusaders