If you want to play it in the downloadable version. You must first download the shockwave. If you don't have shockwave it won't let u play. Where can you get shockwave. Easy go to
www.streetfighteronline.com click on start and then mirror1 and a new site will pop up and it will ask you to download shockwave. After your done downloading shockwave you can start playing. If you want to play the downloadable version you must go to that site and click on start and click download. A list will come out. Download all those files and save it to a folder where you will remember it. Download the bottom part first. After that download the one that on the top. And then you should be able to play the game.