Nothing newer than the Dreamcast (I was thinking of limiting it to the 8 and 16-bit eras, but we wouldn't have much of a thread here).
Which games had manuals that barely contained any useful information, or even worse, listed the wrong controls or some other incorrect info?
The first one that comes to mind for me is Batman Forever (SNES). Most of the controls were mixed up or were just plain incorrect. I remember reading an issue of GamePro where a reader expressed their frustration with the manual. GamePro's response: "Shame on you, Acclaim!"
I also remember the manual for Quattro Sports (NES) being pretty thin, although I don't have a copy on hand.