Editing Chex Quest (section)

====Leftover levels====
''Chex Quest'' has only the first five levels from ''The Ultimate Doom'' converted for the game.<ref name=cq>{{cite video game|title = Chex Quest|developer = [[Digital Café]]|publisher = Digital Café|date = 1997|platform = [[Personal Computer|PC]]}}</ref> Some leftover levels are playable (as ''Chex Quest'' conversions) only via the level warp parameter at startup.<ref name=foster>Foster, Neil. ''[http://www.hardcoregaming101.net/chexquest/chexquest.htm Chex Quest] {{Webarchive|url=https://web.archive.org/web/20140223193851/http://www.hardcoregaming101.net/chexquest/chexquest.htm |date=2014-02-23 }}''. Hardcore Gaming 101. 13 February 2014.</ref> These leftover levels include maps 6 through 9 from episode 1 as well as all maps in episodes 2, 3, and 4. In these levels the music reverts to the original score from ''Ultimate Doom''. After the level warp parameter is used to access maps E3M1 or E4M1, the remainder of the levels (through map 5) within the episode selected can be accessed by completing the levels in the episode in order (just as with the standard level progression in ''Doom'' or ''Chex Quest''). Unfortunately, bugs prevent any of the other levels from launching upon completion of the level before it, and similarly E4M9 cannot be reached from E4M2 as previously. Completion of E2M5 (via either exit) displays the end graphic originally displayed at the end of The Shores Of Hell, the second episode of the original ''Doom'', and completing E3M5 displays the end sequence from Inferno, the third episode. Likewise, completing E4M5 displays the end graphic from Thy Flesh Consumed, the fourth and final episode of ''The Ultimate Doom''. Both of the latter two end sequences feature a decapitated rabbit named Daisy.<ref name=cq/>

[[File:Chex quest you've done it.jpg|thumb|The intermission screen shown after completing E2M5]]
Episode intermission texts which originally (i.e. in ''Doom'') were displayed upon completion of E1M8, E2M8, E3M8, and E4M8 are now found in modified form for ''Chex Quest''.<ref name=cq/><ref name=foster/> Thus completion of E1M5 in ''Chex Quest'' now displays the new message: "MISSION ACCOMPLISHED. ARE YOU PREPARED FOR THE NEXT MISSION? PRESS THE ESCAPE KEY TO CONTINUE..."<ref>{{cite video game|title = Chex Quest|developer = [[Digital Café]]|publisher = Digital Café|date = 1997|platform = [[Personal Computer|PC]]| level = E1M5|quote = MISSION ACCOMPLISHED. ARE YOU PREPARED FOR THE NEXT MISSION? PRESS THE ESCAPE KEY TO CONTINUE...}}</ref> Completion of the leftover level E2M5 displays the message: "YOU'VE DONE IT!"<ref>{{cite video game|title = Chex Quest|developer = [[Digital Café]]|publisher = Digital Café|date = 1997|platform = [[Personal Computer|PC]]| level = E2M5|quote = YOU'VE DONE IT!!}}</ref> which never appears in ''The Ultimate Doom''.<ref name=foster/> Likewise, the episode intermission text displayed upon completion of E3M5 reads: "WONDERFUL JOB!",<ref>{{cite video game|title = Chex Quest|developer = [[Digital Café]]|publisher = Digital Café|date = 1997|platform = [[Personal Computer|PC]]| level = E3M5|quote = WONDERFUL JOB!}}</ref> and that displayed upon completion of E4M5 reads: "FANTASTIC"<ref>{{cite video game|title = Chex Quest|developer = [[Digital Café]]|publisher = Digital Café|date = 1997|platform = [[Personal Computer|PC]]| level = E4M5|quote = FANTASTIC}}</ref> again neither of which ever appeared in the original game. Charles Jacobi has said that there were never any plans to produce more than five levels<ref name=lock/> and that he knew Scott Holman, another programmer, ran through the text strings and changed any that seemed inappropriate, without knowing where they went.

The skins for the more difficult enemies from ''Doom'' have not been converted as these enemies were not employed in ''Chex Quest'' levels, but rather the skins have been removed entirely.<ref name=cq/> This introduces an additional experience for those playing the "leftover levels" as these difficult enemies still exist in a completely invisible form.<ref name=foster/> This also goes for items like the partial invisibility, berserker pack, light amp goggles, and all skull keycards. In addition, the music from the original registered ''Doom'' as well as the overworld graphics (depicting [[H. R. Giger|Gigeresque]] scenes of death and hell) and maps that were not modified (E1M6 through E4M9) were left intact,<ref name=cq/> allowing anybody with WAD file editing knowledge to create their own copy of registered ''Doom'' (specifically ''The Ultimate Doom'').