The same from 2004.
This game is very easy if you played Dragon Ball Z Budokai 3, because the game is basically the same.
The first unneded change is the gameplay; They could innovate or keep the good work with Dragon Ball Z Budokai Tenkaichi 3 and do not make a worse copy from Dragon Ball Z Budokai 3.
There are some new characters but they have powers beyond the others when using Ultimate Attacks because you can't defend yourself unless you are not hit while your opponent try to get you into the Ultimate Attack scene.
Conclusion:
If you played Dragon Ball Z Budokai 3 or Dragon Ball Z Budokai Tenkaichi 3 just keep playing them there's no why for buying this one; Grafics are the same(This is good!), gameplay have some changes but do not influences a lot and is not a chalenging game.