You'd either click everywhere on a painting until something worked, or you'd be greeted with messages like these, done by artist Joe Alterio.
Jeez, rip those messages out of bright and cheery games and they're pretty blunt. And depressing. "You can't go any further" just makes me want to curl up in bed and not talk to any of you for the rest of the day.
Adventure game-inspired prints by Joe Alterio [Super Punch]