Dragon Ball Z: Legacey of Goku I was on a massive DBZ kick back then, and to be honest, I still kind of like it, and have played other games for it - some are pretty decent.
This game however... um, no thanks! You are as weak as anything, your attacks take forever to power up (and they can't hurt a fly if you don't) you can only fly for a short time, and you can't fight and fly at the same time (which every true DB fan wants to do.)
You can level up like in RPGs, but the fights are just unfairly uneven, by the time you have leveled up - the enemies are even more powerful. I don't mind leveling up - I love it. But in this game something like a dog can kill you in three hits, and you have no time to fight back because you have to charge your energy and you can't get away...