onArcade is the best arcade script with many great features from file grabbing to scores support. Here is a list of onArcade features:
> Powerful admin panel
> Play SWF and DCR games, videos and music
> Record top scores
> Comments and ratings
> Exchange links with other arcades
> Membership system
> Search media
> Grab games or videos from other sites
> Statistics
> RSS Feeds
> Template and language system
> Pre-loaded with 1000 games + 100 games that work with scores mod
> And many more... (http://www.onarcade.com/features.php)

Demo (http://www.onarcade.com/demo.php)
Order (http://www.onarcade.com/order/order.php)