Pretty much half of my playtime was in training mode, the rest spent fighting against friends in 1v1. The achievements were more grindy rather than hard, especially the 20kk zeny one. I got lucky when they gave away millions of zenies for free after selling 5 million copies. I couldn't imagine doing this otherwise.

This game also got me more into fighting games. Used to play a lot of MK and Tekken back in the PS1 days, but not many after that. Can't wait for DBFZ2, whenever it comes out.