The Bomb Codes are a mechanic of Zero Escape: Virtue's Last Reward. However, they are only relevant in the timelines behind the Cyan Chromatic Door, as they are not applied in any other timeline (since Akane Kurashiki is found dead instead). Sigma Klim must jump from other timelines in order to obtain the bomb codes to defuse the bombs in Phi END.
- Bomb #0: Obtained in Dio END by Dio outside Rhizome 9. The code is LXA QNS GDQ.
- Bomb #1: Obtained in Tenmyouji END by Zero Sr. in Director's Office. The code is BQZ RGJ DXR.
- Bomb #2: Obtained in Alice END by Dio in Warehouse A. The code is EQD DYR NTK.
- Bomb #3: Obtained in Sigma END by Dio in Infirmary. The code is LXQ LHC NMR (NA/EU) or BKZ XCN KKR (JP).
In the final hidden file, it says to +1 to alter the bomb codes from gibberish to something meaningful. This means to move forward one letter of the alphabet for each letter.