E1M5, E1M7 are also good levels to skip to on Ultra Violence and start blasting, Using respawn on Ultra Violence also makes it interesting for E1M5 and E1M7.
Nah... No mouselook really makes this much harder. Took me over 10 attempts to pass, and I'm Diamond at Overwatch.
If this implementation supported the now-standard WASD (which was absolutely used by some high-level Doom players back in the day) AND if it allowed me to fire using the left mouse button (again, like the original game), then it would have been relatively easy to prove that I'm a human. :)
or alt?
https://doom.fandom.com/wiki/Configuration_file#Keyboard
[1]: For a childish reason - being considered not a "true" way of playing. Although maybe that had some rational roots too, because back in the day mices weren't particularly good - bulky with heavy balls and imprecise with lint-hungry rollers and simple low-resolution sensors.
In Doom and Wolfentein 3D, it was more of a weird mouse look and move thing that wasn't very usable.