I had an issue with Kat's roll for a while, I always seemed to attack the wrong way, missing even Lv 1's often because she would just dash offscreen, away from enemies.
I noticed that, when rolling forward, tapping left and right functions as normal, she'd look in that direction.
Rolling backwards, however...
If you look right, tap left to roll backwards, then tap right, she'll look left (Instead of right).
If you look right, tap left to roll backwards, then tap left again during the roll she looks right. Then after the roll ended, she immediately blocks left.
Considering how many times this inconsistency messed with me, I really hope this will get fixed sometime (soon).
This is on the PS Vita version.. I don't know if this is an issue on the PS3?
I've actually tried this with a number of characters. Kat's the only one with this bug. I've tested this in Practice mode, it's pretty obvious it's not working properly.
Emmett is working fine.
The roll is a pretty big thing, especially for combo characters like Kat and PaRappa. I've played PaRappa so much, the roll has become really important. I know how to use it.
I kept trying to tell him that he could choose which way to face upon finishing the roll, but I tested it with Kat later on and lo and behold, she can't do it. I definitely don't think that was intentional.