Although iPad does not fully support Adobe's Flash technology, a number of Web Browsers available for the iPad handle at least some Flash sites. The best of these is a free one called Puffin.
Here are pointers to further information about Flash and iPad:
… articles about different solutions for playing Flash: How to Get Flash on the iPad and Can I Play Flash on iPad? Yes!
… sample sites that “flash” browser should be able to handle: syfy.com/tinman, arome.fr, Monoface, Get The Glass
… sample sites that “flash” browser handle somewhat: friv
Other browsers with some Flash support are Skyfire ($5), Photon ($5), iSwifter ($5). I have tried all of these and prefer Puffin.