All levels will give the error Z_CT at wi_stuff.c:1080 after the 'ENTERING' part of the intermission screen, making it impossible to progress normally.SKY2 is used as episode four's sky texture instead of SKY4.The opening demo reel references the HELP2 screen, which is not included in the final IWAD, and doesn't play DEMO4.The final version uses The Ultimate DOOM Startup v1.9 in dark gray text on a light gray background.
