Zillion 3D is a Wolfenstein 3D mod with characters from the anime Akai Koudan Zillion. Two episodes. 20 levels. 4 bosses. It’s based on Wolf4SDL, so it runs straight from Windows.
Zillion3D_1.1 is a revised version of Zillion3D. New Stuff: Ammo limit is 99. Difficulty is more balanced. Bosses die quicker. Par times more realistic. Extra life at every 150.000 points.