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A mask is a third-party Mindspike utility that can be toggled by the Interloper to alter thought spaces inside the cyst. Masks can be accessed in the top left menu once they are unlocked.
Reality
The Reality mask is available when masks are unlocked. It does not have any abilities, but can be used if the effects of other masks are not necessary.
Unity
The Unity mask is given to the Interloper when they first meet Council. When this mask is received, it unlocks the Mask option in the top left menu. It unlocks the Unity ACT when equipped, which is used to help Isabel and her effigies, the Fairy, and the Geli (thoughtform) back to Jokzi Ozo.
Hunger
The Hunger mask is given to the Interloper by the Fairy after rescuing them. It allows the Interloper to see and cross gaps through highly incoherent areas.