This is actually a great series, really
I'm not too gung-ho about gratuitous violence, but all 5 installments of the series have been great, regardless. The development of your skills is very apparent from DR1 to DR5. I'm kinda looking forward to seeing how the series will wrap up. I hope you don't kill off the main character or anything.
So yeah, great graphics, good animation, good use of sound. If there's one thing, it's that I laugh every time I hear "B.M. Virus", since B.M. usually stands for bowel movement.