This is not my game. I did not make it. I copied the html code with permission from http://www.sonicgame.info./ The master password if you want to see it is at the bottom of the page.
Ultimate Flash Sonic GamePowered by: Sonicgame.info: Free Sonic Flash Games
Here it is: 595313131313131
For some reason, it will not copy & paste, so just enter it.