i have a problem with a flash game it has exclusive content that would help the speedrun but it's locked on kongregate.

I honestly have no idea what any of this means. Is the content locked behind a paywall? If you have to pay for it, pay for it. Nobody here is going to tell you how to get around paid content.

I think the issue here is that flash is no longer supported by web browsers, meaning you shouldn't be able to play flash games on kongregate per se. You can still play them on Bluemaxima Flashpoint, but that wouldn't get the site exclusive stuff I guess.