I've played this game A LOT since I was young and have just found out about speedrunning and was wondering how you go about posting a speedrun for this game

There are only two Jackie Chan Games in the Adventures series: One for the PlayStation 2 and the other one for the GBA. On the PS2 version it is just called Jackie Chan Adventures and on the GBA, it is known as Jackie Chan Adventures: The Legend of the Dark Hand.

Would I have to make a speedrun of the GBA version to get a time added? or does the game need added here first?

I've added a GBA category and ive put easy, normal, and hard.