Only a few Capcom games actually make use of the Dreamcast controller. All others ignore it.
P.S.
I would like to request that you keep related posts together. You have made multiple posts based on the Dreamcast/Maple subject and it would be good to keep the forums clean.
That hasn't really been a problem here. The other members on this forum ask their questions and because there are so many reading, you are bound to get an answer.