Let user set "Players" option to one human & no bot (or one bot & no human)

[ncrecc]

"Why not" situation; want to fight the Boss minigames (Sledge Brother, Fire Brother, Bomb Brother) without interference from the AI or another character in the level as dead weight. Perhaps also disable the win condition in all "be the last person standing" modes if only one player is present, to allow an endless "endurance" one-player Survival session.
(Although, this is assuming rounds can support having 1 player to begin with, and no major rehauls would have to be made to prevent crashes in this case.)