how do you get into the beyblade world championship?

Well you can call the hot-line of bankai or what ever paper comes out of the container or box also watch

any channel that airs the cartoon version of beyblade to know if there is a competition near you and then If you win a local championship then they might give you a chance to go to the championship.:)

You have to get into your local Bakigan Brawl Club. After you've entered, you have to compete with the best of your fellow ten year old neighbors. If you can beat them, you move on to this championship but first you must master your Bakigan technique. I hope this helps.