Well to be honest there weren't too many but there was this one glitch that really bothered me, but it's only happend twice.
One time when I went to the Dojo level I went in but no one was moving, no blinking or anything, and I could even walk through the character's bodies.
It also happend at Harry's night club place, forutnately I was still able to speak with everyone as normally, but they were like statues.
I wish this glitch would happen on the normal mission levels.
I think I've played about 10 hours of the game but I gave up when I was trying to learn a new sword technique but even though I was doing it all right the game didn't think so, I spent half an hour trying to do this, and then I cried myself to sleep.