ArcadeParlor is basically a website that allows you to play multiple Flash games online. You can find around 3000 games including sports, action, adventure, shooting, etc… ArcadeParlor also places a section called “Premium Games” where you can have access to 2000 other free games on the sole condition that you install an application needed to play.
Obviously the goal of this application is not only to let you play games for free. Arcade Parlor is adware so it will spread ads here an on the pages you visit with your browser. These ads will be posted with the title by ArcadeParlor or powered by ArcadeParlor and will slow your internet speed, making in near impossible: your PC will struggle and sites will be covered in all kinds of ads.
If you have ArcadeParlor installed on your PC you probably did not install it voluntarily because this adware invites itself in rather aggressively: via false updates for programs or plugins (most commonly Flash or Java). All that shows us is that the real goal of this program is to make money of your back.
Here are some of the folders installed by ArcadeParlor onto your PC: