The Überplay edition includes house cards valued 1-30 and two of each check values 0 and 2-15. It accommodates 3-6 players and features new art.
The rules are also changed. First, the quantities of cash to start differ depending on the number of players. Second, matching a previous bid is no longer allowed -- one must raise or fold. In early printings there is also an apparent error that directs players who fold to recover half of their bid rounded up, contrary to the example given. Much discussion is found in the forums, including Re: Original bidding rules . . . how do they work?clarification from the designer[/article].