Languages Size CRC32 Region Serial
English, Japanese 256K DEE05370 USA, Europe, Japan DMG-MEA, DMG-ME-USA, DMG-ME-(ESP-1/UKV)
Code Filter
GENIE
00A-B7F-19A
GENIE
??6-FCA-C4A
186-FBA-4CA
006-F3A-4C6

0 - Regular Beam 1 - Ice Beam 2 - Wave Beam 3 - Spazer Beam 4 - Plazma Beam 8 - Missiles

0 - Regular Beam 1 - Ice Beam 2 - Wave Beam 3 - Spazer Beam 4 - Plazma Beam 8 - Missiles

GS
010?4DD0

lower values yield quicker detonation time

lower values yield quicker detonation time

GENIE
303-FCA-6EB

Set to 01 for instant explosion.

Set to 01 for instant explosion.

GS
01??31DD

Push Start to pause the game, you'll notice there is a strange 'menu' on the screen. ...

Push Start to pause the game, you'll notice there is a strange 'menu' on the screen. You can turn items on and off, and change the beam you're using. There's also a feature that lets you save anywhere, by pushing Select while paused. After pushing select, the game will resume, without sound. Push Start twice to return to normal.

GS
0101A0D0

Pause the game and use Left and Right to select an item and A to toggle it. Use Up and Down to selec ...

Pause the game and use Left and Right to select an item and A to toggle it. Use Up and Down to select a gun. Press Select to save the game if standing still (note: if the screen doesn't stay dark, pause and press Select again, repeating until it does), then pause and unpause again to restore sound. This code may cause bugs but it only needs to be on when loading or starting a game.

GENIE
7B2-4BB-5D4
GENIE
188-B6A-2AA

When you use the Debug code's Save Anywhere feature, you'll notice glitched graphics when ...

When you use the Debug code's Save Anywhere feature, you'll notice glitched graphics when you resume. This happens because the game loads a font overtop of enemy sprite graphics in order to display the 'SAVE--- PRESS START' and 'SAVE COMPLETED' messagea for the save point. (Leaving any room with a save point in it will refresh the graphics.) This code redirects the loader to code that doesn't do anything, so the enemy graphics remain loaded and you can safely resume the game after using the Save Anywhere code. (Sure, the text for the save point will be garbage, but you know what it says. :p)

GENIE
6F6-56F
GENIE
A02-52B-193

Press Start to pause game, and you'll have access to a Debug Menu. Press up/down to change weap ...

Press Start to pause game, and you'll have access to a Debug Menu. Press up/down to change weapon type(but not graphic), left/right to move equipment selector, A to activate/deactivate equipment. Hold B and press left/right to modify maximum health, and refill to that point, hold B and press up/down to modify maximum missiles(shows up after game is unpaused), and refill to that point. Hold B + Select, then change screens to go to final boss. The code only needs to be on when accessing a save file.

GENIE
002-4BB-5D4
GENIE
006-F3A-4C6

If You Don't Have An Energy Tank

If You Don't Have An Energy Tank

GENIE
ACE-7DB-A9F

Makes Metroids Come Back Too

Makes Metroids Come Back Too

GENIE
544-34B-9A0

Some things can be used to land on or jump off of.

Some things can be used to land on or jump off of.

GS
01542DDE

Turn off to stop falling

Turn off to stop falling

GENIE
00F-36E-5DA

Values higher than 03 will cause graphical glitches

Values higher than 03 will cause graphical glitches

GENIE
02C-FBE-E6E
02D-27E-E6E

Values higher than 03 will cause graphical glitches

Values higher than 03 will cause graphical glitches

GENIE
02C-CAE-E62
02C-99E-E62
GENIE
21A-C0F-4C1

This code gives you Bombs, High Jump Boots, Screw Attack, Space Jump, Spring Ball, Spider Ball and V ...

This code gives you Bombs, High Jump Boots, Screw Attack, Space Jump, Spring Ball, Spider Ball and Varia Suit. All the items can be saved.

GS
017F45D0

01 - Bombs 02 - High Jump Boots 04 - Screw Attack 08 - Space Jump 10 - Spring Ball 20 - Spider ...

01 - Bombs 02 - High Jump Boots 04 - Screw Attack 08 - Space Jump 10 - Spring Ball 20 - Spider Ball 40 - Varia Suit 7F - All of The Above

GS
01??45D0
GENIE
182-E3A-2AA
182-6FC-2AA
0D2-70C-3B2
GENIE
80F-6DD-7F6
GS
010952D0
GS
019951D0
GENIE
00F-36B-E6E
GS
019953D0
019954D0
GS
019986D0
GS
013953D0
GS
018784D0
GENIE
C9E-E8D-E69
GENIE
009-FEE-19A
GENIE
??B-1AF-D53
GENIE
0AA-1FE-C4E
GENIE
CDD-44F-E61
98D-45F-91C
14D-46F-A26
FA4-30E-4C1
FA4-61E-4C1
GENIE
0DA-23E-E6E

Metroids will still appear and you can kill them if you want, but you don't have to kill them to adv ...

Metroids will still appear and you can kill them if you want, but you don't have to kill them to advance. However, I haven't tested the code thoroughly, but it's possible that for the very last area, when the game throws the extra 9 Metroids before the last boss, they might not appear if you haven't defeated the initial 39 Metroids.

GS
010089D0

Hold the jump button to raise to the desired height, release to fall.

Hold the jump button to raise to the desired height, release to fall.

GS
010110D0
GS
010A20D0
GS
01??50D0
GS
01??52D0
GENIE
10C-E9D-C4A
GENIE
12C-E9D-C4A
008-12B-E6B
GS
010080FF
GENIE
FFE-7EB-A9F
GENIE
AFE-79B-A9F
GS
01??99D0
GS
01??98D0
GENIE
??0-CDB-A2E