I played some text-based adventure game which also had graphics.

I wish I could remember what it was. It was cool for the early 90's, sort of fantasy-horror haunted house kind of game.

I recall finding a bug on a replay of the game, where I accidentally typed a command one room early in the house, and it immediately went to the end game screen. Apparently the bug was that at any time you could basically type something like, "Open the last door" and you would immediately finish the game.

That's got to be the fastest speedrun I've seen, just by virtue that the game intro was a lot shorter than Monkey Island.