I use to own a Mad Catz controller for my Gamecube. The problem with having it was that it didn't work on all games. I got Mario Party 5 on Christmas when it came out, and it just didn't respond. I got it replaced and it still didn't work, so I just got a regular Gamecube controller. The same thing happened when I got a PS2 controller as a gift. I really got mad and got it replaced for a Sony brand controller. Has anyone ever had this problem as well?