Ken looks like he came straight out of UniB with those xbox huge normals, but it looks like he has a lot of recovery on his normals. Whiffing his DP keeps him the air for an eternity and open for a free combo too.
Anyway, look's like Koromaru operates similar to Nirvana except he can be hit anytime, even when Ken is blocking. Pretty neat that the Koro super can be used midair too.