Facing the four outside computers, their order is Red, Green, Blue, Yellow from left to right. Tap what flashes, then use the numbered result in-game.
After power is on, start at the outside computers by Tunnel 6. Watch the flashes, record them below, then press the same computers in-game. Repeated colours are allowed.
No flashes recorded yet. Tap a colour above to start.
The old helper used a two-by-two screen layout. The game’s row is fixed; any older screen-layout notes are retained in storage but are not used to calculate this result.
Observations save in this browser. Reset for a new match. Open this step in the map guide →
Gameplay: Activision / Treyarch. Screenshots and symbol references: mmmrkennedy, COD Zombies Guides, Glitching Queen and the r/CODZombies community, as applicable. Some shared-layout references show the original release. The map’s sources credit the walkthroughs and their contributors.