Expert speedrunner Looper created a Tool-Assisted Speedrun of Doom II in nomonster mode (including map 31, but not map 32). The demo can be downloaded from the Doomworld thread here and a split screen rendition can be seen below.


The tricks are impressive, if disorientating. The robot players move perfectly, turn instantly, and do anything to get a little speed boost, including getting shot or thing-running against each other. The grand finale against the Icon of Sin is as glorious as it is hilarious.