Codes, secrets & unlockables
Halo: The Master Chief Collection cheat codes
A single, organized reference for every cheat and secret currently documented for Halo: The Master Chief Collection.
Save your game before using cheats. Some codes may disable achievements or trophies for the current session.
Halo: The Master Chief Collection skulls
Choose a campaign mission, then select available skulls before starting. Availability and effects vary by included Halo campaign.
Cheat-style skulls
- Acrophobia — enables flight in supported campaigns
- Bandanna — unlimited ammunition and grenades in supported campaigns
- Boom — increases explosion radius
- Cowbell — increases physics acceleration from explosions
- Grunt Birthday Party — special Grunt headshot effect
- Piñata — melee hits can make enemies drop grenades
- Scarab — weapons fire Scarab-style projectiles in supported campaigns
- Feather — increases physics reactions
Challenge skulls
- Black Eye, Blind, Catch, Famine, Fog, Iron, Mythic, Thunderstorm, and Tough Luck
The setup screen shows whether a skull disables scoring or achievements.