I stumbled on this while testing COLORMAP generation algorithms. Do : $ prboom -iwad /path/to/doom2.wad -file backwards.wad Start MAP01 at HMP skill. Pick up the chainsaw. Meet the former humans. You'll soon notice that they act strange. Indeed, they will always face you, even while moving away from you. This gives the unreal impression that they're walking *backwards*. The imps do the same. The COLORMAP lump in backwards.wad, apart from making corpses shine in the dark, is too short. For some serendipitous reason, this causes PrBoom to misbehave in this wonderful manner. Reproducible on i386 with both the Debian 2.2.2-1 package and version 2.2.3 compiled from source. I'm reporting this bug under the condition that you promise NOT to fix it. Bugs like this should be pampered and looked after, not fixed.
822 2002-11-01 README 8_220 2002-11-01 backwards.wad