L1+Left Stick = Roll. It says so right on Raiden's Character Page.
I'm aware that he can dodge...it was in the video...
I'm also aware of Omar saying N.Circle is a counter for Raiden. It is even in the profile right now (used to be the move known as "box"). The profile also says his counter is L1. We will not find out if this was a mistake until November 20 unless someone on these forums has actually played Raiden or straight up asks Omar in an interview if L1 blocks or counters.
it was in a video of omar talking over gameplay. it was on columbia and they were showing off raiden. any one know what im talking about? i cant find it