Metal Storm Action Replay Codes (USA)

This page contains the Action Replay codes that I have available for Metal Storm (USA), a game for the original NES (Nintendo Entertainment System). If you're playing on an emulator, you'll typically be able to put these codes into the program through a built in option. Anyone who is really old school and playing on a physical console will have to purchase a physical Action Replay device to use these codes.

When it comes to emulation for the NES you have 3 good options to choose from. You can do RetroArch, Nestopia or MesenCE, follow the links provided to learn more about how to use the codes you find on this page on the Emulator of your choice. If you don't see the code you want on this page, I recommend you return to my Metal Storm Guides Index and choose a different section.

 

Boss 1 Hit Kill: 06F0:00
Use this code when you're fighting a single boss, don't leave on during normal gameplay

Easier Shield Extension: 0619:0F
Shield will extend instantly in the direction you want

Have Gravity Fireball: 043C:80

Have Gravity Fireball: 043C:28

Have Plasma Beam Gun Upgrade: 0718:80

Have Plasma Beam Gun Upgrade: 0718:28

Have Shield Force: 0717:80

Have Shield Force: 0717:28

Infinite Lives: 0716:09

Infinite Time (Left Digit): 0056:??

Infinite Time (Middle Digit): 0055:??

Infinite Time (Right Digit): 0054:??

Infinite Time [Left Digit]: 0056:??

Infinite Time [Middle Digit]: 0055:??

Infinite Time [Right Digit]: 0054:??

Level Modifier: 0051:??

Regular Gun Fires Through Most Walls: 04E2:80
It doesn't shoot through orange blocks, but it'll shoot through most other walls

Shield Position Modifier: 043E:??

Stage 1 Boss is Always Vulnerable: 0646:80

Stage 3 Boss is always Vulnerable: 0615:02
Also works on part of the Stage 6 Boss

Stage 5 Boss Attack Modifier: 06F1:??

Walk Through Enemies: 074B:25
Activates after the first hit, some things can still damage you.

Shield Position Modifier - Up: 043E:10
You can use the shield position modifier code to have a shield on two sides of your character at once.

Shield Position Modifier - Down: 043E:20
You can use the shield position modifier code to have a shield on two sides of your character at once.

Shield Position Modifier - Left: 043E:40
You can use the shield position modifier code to have a shield on two sides of your character at once.

Shield Position Modifier - Right: 043E:80
You can use the shield position modifier code to have a shield on two sides of your character at once.

Stage 5 Boss Attack Modifier - Diagonal Lasers: 06F1:00

Stage 5 Boss Attack Modifier - Straight Lasers: 06F1:01

Stage 5 Boss Attack Modifier - Laser Shields: 06F1:02

 

Have Armor Upgrade

0528:30
05D0:80

 

Have Armor Upgrade

0528:48
05D0:28

 

Invincible
Disable this code before a level ends otherwise you'll freeze
If you touch an enemy you'll freeze

0034:00
0648:00

 

Stage 6 Boss is Always Vulnerable

0615:02
0616:02
0617:02

 

Bosses 1 Hit Kill

05E3:00
05E4:00
05E5:00
05E6:00
05E7:00

 

Stage 2 Boss Can't Fire

050B:00
050C:00
050D:00
050E:00
050F:00

 

Max Score P1

0043:09
0044:09
0045:09
0046:09
0047:09
0048:09

 

Most Enemies & Projectiles are Stationary
This works mostly on enemies that move side to side. It will slow down other enemies drastically too.
Also effects bosses.

0568:00
0569:00
056A:00
056B:00
056C:00
056D:00
056E:00
056F:00