The characters all have their respective transformations, beams are controllable, there is a PL level system and a way to sense other players (currently uses a scouter system that while okay, will be replaced with a new and improved Spider-Sense like system.) You can charge up the hugest of huge when it comes to the ki orbs, and your character is customizeable. You'll be dazzled by Bulma flingin' a Big Bang Attack at her husband who has just been dazed by a volleyball fist to the head.
There's a pretty extensive list when it comes to characters, and that's not even with the hidden ones. The melee system offers a variety of moves that in conjunction with zanzoken can be most useful. I haven't really ranted too much about the game, but it is really something you should try out if you have a copy of Jedi Knight. I know all I have said comes off as somewhat incoherent, but the game is definately worth a look.
I mean, where else can Mr. Popo and Dende have an epic beam battle on Kaiosama's planet?

I am the master of bad screenshots.