I have compiled a testbuild for Hexen II for dreamcast, i did not find any compilation, so i made one myself, the game boot, Button A is for action, B for jump, Start is menu, to attack u had to go to options and custom controls, the X (joy3) must put to attack or the MC would not attack.
Game has a erratic lateral bug, is playable some how, is a testbuild so if someone can build a better compile, here it is.
GDrive link for test it