Dead or Alive 4 is a decent game, a game a bit like Tekken or Streetfighter. I bought it because I was getting a little bored playing my other games.
I got into straight away, the only problem I had with it is that it took a while to get used the combo's. learning them was difficult.
I got there eventually and I was sort of addicted to it for a while, its good to play with your mates now and then, but I did get bored eventually, I would give it 6.5/10.