Weird Password Oddities

From Glitches

From the game Willow for the NES.

Enter this password: oBH jq2 xgI 5ve iNw g5f. Press the select button and it will bring up two numbers. Hold B and press Up or Down to change the first number and hold A and press Up or Down to change the second number. These are coordinates to different areas around the game. Pressing select again will warp you to those coordinates. Although this appears to be an intentionally-programmed code used by developers to test the game, it can also be used to access glitchy, scrambled areas that do not exist during normal gameplay. One side-effect I discovered of this glitch is that if you warp into a screen with a boss (I usually ended up warping to Bavmorda's room as multiple ones exist - most are scrambled), and then warp again, the boss will follow after you. Bavmorda is impossible to kill when using this password because your level is not high enough.

Taken with permission from Flying Omelette.