Metroid

Metroid is the first game in the Metroid series of video games, and was released for the Nintendo Entertainment System in 1986. The game was produced by Gunpei Yokoi, one of Nintendo's most famous game and hardware designers, and directed by Yoshio Sakamoto. The game is also very notable for its music, which was composed by Hirokazu "Hip" Tanaka.

Passwords
Metroid was filled with odd codes, as all but one of them were hard-coded into the game.

Enter all these at the password screen.

NARPAS	SWORD0 000000	000000
 * Weapons: ALL
 * Energy Tanks = ∞
 * Missiles = ∞

some-1	set-up us-the	B0MB11 Start at the beginning with suitless Samus, and:
 * Weapons: Wave Beam, Screw Attack
 * Energy Tanks = 6 (empty) / Missiles = 216
 * NOTE: Use a ZERO in the word B0MB, not an 'O.'

justin	bailey --	-- Resets the game to the title screen.

BBBBBB	BBBBBB BBBBBB	IIIIII Turns the screen black, and freezes the game. (Note: When used on an emulator, the game starts with a glitchy blue overlay, suitless Samus, and the Wave Beam.