This is one of the first games I ever got for my PSP, and I had no idea what it was about. Thats argos for ya. Anyway, I evantually found out it was a fighting game, and thought I had wasted my money. Boy was I wrong. The characters are amazing with their own special moves, and because it's on an LCD screen it looks even better! They have a special tutourial you can try at the beggining which helps, but I get bored and are more used to figuring things out myself. But the annoyance of that the tournament never seems to end does get to you, I got all the way up to Stage 28 and got fed up. My sisters like it anyway.
Now I don't have a memory stick, so I don't know if it saves everything, but overall the game rocks!