Board Thread:Questions and Answers/@comment-33935463-20180426192324/@comment-31598739-20191109223615

Chasekilleen wrote: That's false because the game's story was written by Araki himself and the game was overseen by Hirohiko Araki himself!! it's canon.

It's as canon as you can get when related to the JoJoverse Taken directly from EOH's article.

"The game features an original storyline supervised by Hirohiko Araki..."

It wasn't written by him, he just got to say yes or no to whatever they came up with, and feedback on what to do. He wasn't the one creating it, so technically it isn't canon.​​​