Arc System Works shared a BlazBlue Portable video, but you may have seen BlazBlue running on a PSP already since PlayStation 3 version supports remote play.
As seen in the trailer, BlazBlue Portable has extra modes like legion mode, a newly created system where players take control of nodes by winning BlazBlue fights, and an ad-hoc four player mode. You can also unlock unlimited mode characters plus illustrations in shopping mode.
For comparison’s sake, here’s a look at portable BlazBlue via remote play, which will have to tide PSP owners over until February 25, 2010.