Space Invaders Action Replay Codes (NTSC-U)
This page contains Action Replay cheat codes for Space Invaders (NTSC-U) for the Playstation 1. Depending on if you're playing this game on a physical console or an emulator will determine how you use the codes found on this page. People using a physical console will need to purchase a physical Action Replay device to use the codes.
Anyone who is using an Emulator will have a much easier time getting these codes to work (assuming your Emulator supports them). One of the most popular Emulators for the Ps1 is ePSXe and if you'd like to learn how to use the codes on this page for that Emulator, check out my how to get cheat codes to work with ePSXe guide. If you don't see the code you want on this page I recommend you return to my Space Invaders Guides Index and choose a different section.
(Classic Mode) Invulnerability: 301AFEE5 0000
You will get stuck if you let aliens reach the bottom
Powerup Always Full: 800D8648 0004
Speed Mode: 800A3792 0002
(Player 1) Unlimited 1st Missiles: 800EF474 0000
(Player 1) Infinite Lives: 300EF4A4 000B
(Player 1) Invincible: 300EF49C 000B
(Player 1) Invulnerable: 800EF47C 0001
(Player 1) Invincible: 300EF6A0 0001
(Player 2) Infinite Lives: 300EF570 0006
(Player 2) Invulnerable: 800EF548 0001
Play The Old Space Invader: 800D8838 0002
(Classic Mode) Infinite Lives
D001B070 0003
3001B070 0010
Play 2 Player Game Alone
This allows you to control both players from one controller
To change distance between your guys use R1 or analog
Use Circle to fire Player 2's secondary missile
D00E0A68 2000
800E0ACE FFDF
D00E0A68 8000
800E0ACE FF7F
D00E0A68 0040
800E0ACE BFFF
D00E0A68 2040
800E0ACE BFDF
D00E0A68 8040
800E0ACE BF7F
D00E0A68 0020
800E0ACE EFFF
D00E0A68 2020
800E0ACE EFDF
D00E0A68 8020
800E0ACE EF7F