Stealth Boy mark II prototype

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The Stealth Boy mark II prototype is a world object in Fallout: New Vegas.


The Stealth Boy mark II prototype is an enhanced Stealth Boy, put through testing by the Enclave during the Great War. According to Doctor Henry, its purpose was to use half the power and therefore last twice as long.

The Courier never actually sees the prototype itself. It is only used by Lily during the quest Guess Who I Saw Today.



  • The Stealth Boy mark II prototype cannot be acquired in the game itself, not even by killing Lily while she is wearing it.

Related questEdit

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