This reminds me off the N64 days. I was very pissed when I got a game (mystical ninja) which actually required a controller pak to save. I thought, none of that shit on cartridge consoles... bah. Anyway I got a 3rd party mem pak. It worked ok, but was really hard to remove from the slot. The I got Turok 2 and it didn't save at all. Had to get an official Nintendo pak to get it to work. Bottom line: 90% of the 3rd party stuff sucks big time.