The WAD is not based on chex.wad, but on a hidden WAD on the Chex Quest CD, DOOM.WAD. As such, there are subtle differences between the first five levels of chex.wad and The New Chex Quest, mostly in E1M4, where there are now three supercharge Breakfasts instead of the normal one. The New Chex Quest is followed by The New Chex Quest 2 and Final Chex in the The New Chex Quest series by Manny Cav. It is currently in its sixth Beta release.