For USA residents, your Flash choices are limited as Wagerworks, Chartwell and Jackpot Joy don't do the US anymore. No great loss on the Chartwell front as their slots are arguably the worst ones you've ever seen. Well, they have one slot, redesigned slightly in 7 different ways!
You could try the Wagerworks games in fun mode only - 50,000 Pyramid and Cleopatra are the picks or Enchanted Unicorn, Monopoly and Cluedo if you prefer "pick 'em" bonuses to free spins. Try Blue Square Casino for quick access with no registration required in Fun mode.
However, RTG issued a flash casino with a handfull of the Real Series slots available. Club USA has the flash version. I'll warn you now though, the Real Series "Flash" slots are slower than the download versions - too slow for my liking. But nonetheless, "Ronin" is a cool slot and is available in the Flash version
Java slots are limited to Cryptologic who don't take US. Available at Intercasino though you have to look hard for the link. They are pretty crap though and only the older slots are available. I concluded that they are not updating these at all anymore. That said, Inter's java casino is where i hit the progressive on Triple Olives for $16k last year
