@Tylor: Yes. It's best to mid hold Busa's laser at close range. Apply the same on Raidou (he does the laser thing too), Genra's lightning bolts and whirlwind if you run into anyone using them.
Kasumi is a lot more limited in Dimensions and 4 since she doesn't have her teleports. You mostly just poke, then launch, then repeat. I can't go back to Kasumi without teleports even with over 8000 matches with Kasumi in DOA4
Dimensions plays exactly the same as DOA4 anyways (except it has a 3-point hold system). It's hands-on experience for those who has been left out from the shadows ever since Itagaki monopolized the series to the Xbox.