No ideas how to name it, but, there is a thing in current Doom RL that should be somehow countered.
The thing is that I like to just hold down the arrow key and blaze trough the level at lightning speeds. The problem is, due to me moving at exessively high speed(I mean realtime) I can bump in a room with monsters and fail to react and stop in time, resulting in continuing moving forward and taking a few hits. I am also a fan of not using portable medkits til very, very dire need, and therefore often run around with less than 30 hp, so taking those few hits can end up being fatal. Of course, I could just not run around like crazy in first place, but that's boring.
What solution I am suggesting? Well, normally, you just can't hold the movement keys. The game won't do anything, it will require you to move space by space, space by space. But then, you can enter some mode where you can hold the arrows and run around like crazy. But, if a monster is spotted, or you're being attacked, or something else bad happens, the mode is automatically exited, and you stop, instead of continuing running and taking hits from monsters.
Well, at least something like that.