#5 Adventure – What is in a name?
Not only was Atari 2600’s Adventure the first true adventure game, it was also home to the first secret room. The easter egg simply displayed the name of its creator, Warren Robinett. “So what!” you say? Well, back in 1979, it was bad form for programmers to list their names anywhere in games, so Warren was breaking with tradition by creating it.
To reach this ancient, secret room, you'll need to first find a single, grey dot. Pick that baby up and carry it to the screen south-east of the Gold castle. This will cause the wall on the right-hand side to blink, a glitch that occurs due to hardware limitation when there are too many sprites on the screen. This blinking temporarily turns the collision detection on and off, enabling you to pass through to the secret room.