I'm going to be kicking off a 4k game competition this week. As a part of the first place prize, I intend to include some indie games which I will buy for the winner. Because I love Flash, I'd prefer this grab bag to be made of Flash games, but aside from Robokill and Now Boarding, I don't really know of any Flash games that use the free/premium model.

Do you know of any? Please feel free to pimp your own games too.