I will not put this project down, considering Pokemon Online was made. The only issue with this, would be the fact that you would basically be rewriting so much source, that it would be easier if you just made the project from scratch.
Unless you simply want to make it like the Pokemon Online, where instead of PokeBalls, you use Yu-Gi-Oh cards, but I am sure you want it to be the exact same as Yu-Gi-Oh... which you could still easily make.... actually, now come to think of it... it would not be that hard of a system.
All you would need to do is make the Yu-Gi-Oh cards unique to the character unless traded, and when you duel, you place the card on the ground, and then in turn it creates a "shell" or "oufit" of the monster on top of the card. It is very possible, and then onLook gives all the details that the card itself would give with a popup. The only problem would be the ATK and DEF part, but I guess it is very possible.
I would like to see where this project goes, so if you can get a few sprites and show some progress, then I will definitely help you with the project.
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