Flash is really underrated here. It's hard to fully appreciate just how important that design was. It helped saved Williams who hadn't had a sales hit in a while, I think it created the cross playfield plunge or at least really popularized it, it was an early example of a repeatable loop shot from an upper flipper that shows up on so many later Ritchie games (protip: upgrade your flippers to later system 11 designs to really pop off some loops), it introduced flash lamps and background noise to pinball, and is frankly still a pretty fun game overall. The only thing you can really ding it for is the art is very meh and the background noise did not age well (defaults to off for a reason)

Flash is one of those layouts that you can see it so many other games made later, like Skateball and Blackout. It really is one of his all time great layouts that influenced countless other games.