- The chewed Stealth Boy is the cause of the night stalkers' invisibility in Charleston cave.
- The chewed Stealth Boy does not show any signs of damage; in fact, its world model is that of a normal Stealth Boy.
- The cause of the night stalker mutation is caused by the Stealth Boy's contents being ingested by a night stalker. The side-effects being passed down through newborns is a possibility, but not one explored in-game.
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