The original Yu-Gi-Oh didn't really focus on a card game. So there would be no merchandise to sell for it. It would have bombed if it came out in 1999 in the US. It was good that 4kids waited for Duel Monsters to come out first.

This I knew already. I just didn't know that there had been any animation releases of it.

It's really weird because they awknoledge it's existence, i mean that's why their celebrating the anniversary next year instead of whem DM started.

I think that's because that's when the manga first started. Granted, that's all stuff that was adapted into season 0 as the start point, but it's still Yugioh.

Kaiba/Rebecca.

It's a thing apparently.

Honestly, I am glad it never got released. It is so terribly boring. The animation was also subpar and the music sucked. Not to mention they needlessly changed things from the stories of the manga for some reason.

It is a horribly animated season of the series based on the early days of the manga before Duelist Kingdom. Unfortunately, they just randomly chose manga chapters to adapt and did a poor job at it. They also added in a girl character for Honda to drool over who was nothing more than a background character in one story as a permanent friend. What 4Kids did to Duel Monsters in the US is what the Death-T arc was done in this Season 0 compared to its manga counterpart.

Season 0 can also be called toei yugioh anime due toei animated the first seven volume of the manga

That's cause the manga came out in 1996 so it make sense to.celebrate it next year due to it been 20 year heck viz media rereleased original manga as 3 in one volume sets.

Yeah i knew that, i'm just wondering why they ignore some things about 0 but not others.

Its cause Toei animation owns season 0 and the people who made dual monsters anime