If you're into DDR, I'd suggest importing the Extreme version. As it is pretty much the same as the arcade version found here in the US (song selection-wise). I'd also recommend getting your hands on both Naruto Narutimate Hero games. Simple, but fun. And if you're into FullMetal Alchemist, get FullMetal Alchemist: Dream Carnival. It's not the action-RPG game that is bound for a US release (FMA and the Broken Angel). It's a 4-player fighting game, which is similar to Super Smash Bros. Melee in a sense.
So it seems you have Berzerk: Millennium Falcon already. That's a pretty nice action game. I like how the sword has some weight to it, acting as though it's slow and powerful (which it is).