zx_ice.wad gfx/env/zmlila_bk.tga gfx/env/zmlila_dn.tga gfx/env/zmlila_ft.tga gfx/env/zmlila_lf.tga gfx/env/zmlila_rt.tga gfx/env/zmlila_up.tga maps/00_iceworld_real_snow.nav maps/00_iceworld_real_snow.res