JLF65 has updated his Doom port for the Dreamcast.

Changes:

Okay, v1.1.3 is here. Changes since last time: the exit is cleaner, loads/saves in-game settings, all new Doom icons for saved files, and shows player status on the VMU so that you can play without the status bar on the screen.

http://dcemu.co.uk/dcdoom-v1-1-3-233126.html