is it the free 3d movement that you're not used to? or the fact that that the enemy didn't just stay there and let you rider kick them to death?
faiz and hibiki doesn't have any gameplay, or difficulty at all, all you need in faiz was a turbo controller because harder opponents only means theiy'll always beat you in mashing buttons during finishers, while Hibiki needs you to understand the very basic of DDR styled games, and that's all, depending on which CH you're talking about, the CPU are piss poor even in the hardest diff, the game was only decent for human VS mostly while the single player features are just for watching you slaughter the enemies for lulz(except for CH1)
kabuto actually sports a challenge of sorts, while still having a very simple gameplay, i mean up to this moment i still haven't beaten the final EX stage for the "other" rider story(the one where you need to use kagami theBee)