Street Fighter Flash
I did a double-take when I first saw this on a French Flash games site. Fighters were the one genre that I had seen very little if anything done in Flash, yet now you can relive those arcade glory days by playing Street Fighter with your friends, on your computer.
Julien Philippe has created a version that allows you to play single player against the computer, or 2-player against a friend using the same keyboard. However, be sure to set your key configuration before you play as I was unable to get any key combination to respond using the default. The game allows you to set keys for light punch, high punch, light kick, high kick, move right, move left, and jump. It's all in there, all the characters and sound. There are a few minor aesthetic problems with it, but nothing that should affect gameplay. The author has available for download a version you can play in full screen, as well as an application that allows you to play with a gamepad controller. It's amazing what people are doing with Flash these days.
Update: Since the author's website is no longer available, we're hosting the game until we can locate where the author may have moved his site to. If there are trademark issues with this game and the original IP owner(s) wish the game taken down, please send an email to the contact address in this site's footer and it will be removed immediately.