Fallout: New Vegas implants

Talking to Doctor Usanagi reveals that she sells physical implants to augment your S.P.E.C.I.A.L. abilities, and two special implants, a sub-dermal implant that makes you more resistant to damage and a implant that allows you to regenerate health.

You can only apply a limited number of implants, the limit being determined by your starting Endurance. If you get an implant (or Buffout) for Endurance, it will NOT allow you to get an extra implant. For example, if your starting endurance = 6, you can get 6 of the 9 possible implants. If you boost endurance to 7 with an implant (or 9 with Buffout), you still will only be able to get 6 total implants.

Physical Implant
Each SPECIAL stat can be raised only once via Doctor Usangi's implants, and they're 4,000 caps a piece (unless your Special is at 1, at which point she will only charge 3,000). You cannot raise a natural stat above 10, i.e. if you started with a base Intelligence of 10, you could not raise it to 11. Should a stat be raised to 10 with the Intense Training perk, the game will permit you to buy that implant without benefit:


 * STRENGTH: Hypertrophy Accelerator
 * PERCEPTION: Optics Enchancer
 * ENDURANCE: Nociception Regulator
 * CHARISMA: Empathy Synthesizer
 * INTELLIGENCE: Logic Co-Processor.
 * AGILITY: Reflex Booster
 * LUCK: Probability Calculator

Special Implant
Special implants adds special effects.


 * NEMEAN Sub Dermal Armor: adds 4 to your Damage Threshold and the price is 8,000 caps.
 * PHOENIX Monocyte Breeder: add regenerates hitpoints at a rate similar to that of the Solar Powered Perk. The price is 12,000 caps.

Videos
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Bugs

 * Sometimes purchasing the strength implant does not increase strength.
 * Sometimes there is no dialogue option for intelligence implant.