As much as I loved the Dreamcast, especially at the time, there's not a whole lot that I am overly eager to revisit. Maybe if they were remastered and updated a bit. Off the top of my head here are some that I would like to see.

1. BangaiO
2. Metropolis Street Racer
3. Tokyo Xtreme Racer
4. Shenmue 1&2
5. Samba De Amigo ( listing this because I can see it working very well with the joy cons )