crt0 has released a new Wolfenstein 3D port for the Dreamcast, one that that he feels is superior than the port he did back in late 2001. A lot of fixed glitches & slighty improved controls are some of the improvements in this version of Wolf3D, although crt0 is still working on trying to get the sound enabled.
More info on this release, screenshots & the binaries can be found at tr0ll’s dc dev – Wolfenstein 3D/DC page.