Direct answer
Confirmed Michael Myers cosmetics include the base appearance, the digital-preorder Phantom skin, the Digital Deluxe Inmate skin, and the Clown and Samhain skins advertised with physical editions as Advance Access unlocks. Clown and Samhain can also be earned through in-game challenges. Phantom is the exceptional case: IllFonic calls it a digital preorder exclusive and says it will not be sold after launch.
Confirmed acquisition groups
| Skin | Confirmed route | Availability boundary |
|---|---|---|
| Phantom Michael Myers | Digital Standard or Digital Deluxe preorder | Officially unavailable to purchase after the preorder period |
| Inmate Michael Myers | Digital Deluxe Edition or Deluxe Upgrade | Paid edition/upgrade content; check current store listing |
| Clown Michael Myers | Instantly unlocked with the Physical Standard or Collector's Edition | Also obtainable through in-game challenges |
| Samhain Michael Myers | Instantly unlocked with the Physical Collector's Edition | Also obtainable through in-game challenges |
The official progression overview also says Killer Levels and challenges unlock skins and tints. It does not publish a complete launch wardrobe or every challenge requirement. A complete gallery therefore needs current in-game menu captures and should label the platform and build date.