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Alien Trilogy Action Replay Codes (NTSC-U)

This page contains Action Replay cheat codes for Alien Trilogy (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 Alien Trilogy Guides Index and choose a different section.


Infinite Armor: 8009A042 03E7

Infinite Batteries: 8009A5EE 0100

Posess Flame Thrower: 8008F8DE 0001

Posess Pulse Rifle: 8008F8D6 0001

Posess Shotgun: 8008F8D2 0001

Posess Smart Gun: 8008F8DA 0001

Faster Turning: 3009A0BC 0040

Have Auto Mapper: 8009A03C 03E7

Have Flame Thrower: 8008F34A 0029

Have Pulse Rifle: 8008F342 0029

Have Shotgun: 8008F33E 0029

Have Smart Gun: 8008F346 0029

Rapid Fire: 8009A5BA 0001


Faster Pause Menu

E308D228 0000
2008D220 0001
E308D220 000A
3008D220 0000


Rapid Fire

E009A034 0001
3009A034 0000
E009A034 0003
3009A034 0000


Going Up and Down Stairs/Slopes Doesnt Tilt View

8009A0BE 0000
E0007573 00FE
8009A0BE 0010
E0007573 00EE
8009A0BE 0010
E0007573 00BE
8009A0BE 0010
E0007573 00FC
8009A0BE 0010
E0007573 00EC
8009A0BE 0010
E0007573 00BC
8009A0BE 0010


Always Run

3003BE64 0080
3003BEB4 00C0


Can Look Straight Up and Down

8009A0C2 FC00
8009A0C4 0400


Can Look Up And Down Further

8009A0C2 FD00
8009A0C4 0300