Passcodes in the game can be found on various notes that are scattered throughout Sudra. The passcodes are 12-letter phrases that can be entered into the Passcode Tool in the format XXXXXX-XXXXXX (the game will automatically enter the hyphen).
The Passcode Tool only has room for 5 passcodes at a time. Passcodes that have been entered can be edited, cleared, activated, or deactivated. Upon activating a correct passcode in the correct location, the player will hear a sound effect indicating the passcode has taken effect. See below for a list of passcodes and their effects.
If you choose to edit a Passcode, you can use the Square Button on PS4 to delete characters.
List of Passcodes
| Passcode | Effect | Found | Additional Info |
|---|---|---|---|
| AXIOMX-XXXXXX | Disables Trophy acquisition | Other effects unknown. Tom Happ said "Beat the game in Story mode, then pay close attention to what happens next."[1] | |
| CUTSCE-NE0001 | Replays the game's cutscenes. Valid values range from 0001 to 0044. | These are in the same order as they appear in-game, except 0040 is the intro, 0041 happens in the middle, 0042 is the ending, and 0043/0044 are the two bonus scenes. [2] WARNING: Save first! This can sometimes cause the game to become unresponsive! | |
| DALKHU-SUBTUM | Reveals a door in the upper-left corner of the lowest-left room in Eribu, allowing access to the Orbital Discharge room. | ||
| DINGER-GISBAR | Opens a wall in the Flamethrower room in the upper-left part of Eribu | ||
| IKKIBU-LABIRU | Reveals a door in the upper-left side of Eribu, leading to a Power Node Fragment. | Glitching the red column in this same room. | The code appears as the top line of the Address Disruptor's white garbage characters, written in Sudran. You can either translate it manually or enter the REVEAL-SUDRAN code. |
| ISKART-EHANZU | Opens a wall in the large lower-middle room in E-Kur-Mah, allowing access to the Quantum Variegator. | ||
| JUSTIN-BAILEY | Changes Trace's outfit to a yellow speedo, gloves, and boots. | This is a nod to the original NES Metroid game. Entering JUSTIN-BAILEY in Metroid's password system would start the game with a number of items, and Samus wearing a pink leotard. | |
| REVEAL-SUDRAN | Translates notes written in the Sudran Language | Sudran Translation (Note) | Gir-Tab assisted in the creation of this Passcode. |
| REVEAL VYKHYA | Translates notes written in the Vykhyan Language | Vykhya Translation (Note) |