Cyborg

Type	NPC
Environment	Valid house
AI Type	Passive AI
Damage	10
Max Life	250
Defense	15
KB Resist	50%
Hurt	https://terraria.gamepedia.com/File:NPC_Hit_1.wav
Killed	https://terraria.gamepedia.com/File:NPC_Killed_1.wav

This is a Town NPC. A House may be required in order for them to appear.

The Cyborg is a Hardmode NPC vendor that will appear once Plantera has been defeated at least once in the current world and a vacant house is available. He sells several "high-tech" items, most notably rocket ammunition for launcher weapons.

On the Desktop version, Console version, and Mobile version, the Cyborg will attack nearby enemies with rockets to defend himself.

Items sold

Inventory
Item	Cost	Availability
Rocket I	50*50	Always available.
Rocket II	250*2 50	During a Blood Moon.
Rocket III	100*1	During the night or during a Solar Eclipse.
Rocket IV	500*5	During a Solar Eclipse.
Proximity Mine Launcher	350000*35	Always available.
Nanites	1000*10	Always available.
Cyborg Helmet	30000*3	During Halloween.
Cyborg Shirt	30000*3	During Halloween.
Cyborg Pants	30000*3	During Halloween.
HiTek Sunglasses	50000*5	Always available after defeating the Martian Madness event.
Night Vision Helmet	100000*10	Always available after defeating the Martian Madness event.
Portal Gun Station	100000*10	When player has a Portal Gun in the inventory.

Names

The Cyborg may have any of the following names:

Alpha
Beta
Gamma
Delta
Zeta
Theta
Kappa
Lambda
Mu
Nu
Omicron
Rho
Sigma
Upsilon
Phi
Ci
Omega
Fender
T-3E0
Niner-7
A.N.D.Y
Syn-X

Quotes

"And then Unit 492-8 said, 'Who do you think I am, Unit 472-6?' HA. HA. HA."
"My expedition efficiency was critically reduced when a projectile impacted my locomotive actuator."
"This sentence is false, or is it?"
"I built myself a taste mechanism, so I can drink some ale!"
"Sometimes I come off a bit... Get it? a bit?"

When Pirate is present:

"Sure, me and <name of Pirate> are pals, but I hate it when his parrot does his business on me. That stuff's corrosive!"

When Steampunker is present:

"So that 'punk' lookin' chick is an inventor, eh? I think I could show her a thing or two!"

When Tavernkeep is present:

"<Name of Tavernkeep> said I reminded him of a certain "EV2". Perhaps I should meet her."

During a Party :

"This party is going to be nuts, maybe even bolts!"

Trivia

The Cyborg is biomechanical and not a robot (true to the name "Cyborg"), as skin can be seen in his hands and face. This is more easy to notice in his old sprite.
Along with the Traveling Merchant, the Cyborg is the only NPC that sells a post-Moon Lord item (the Portal Gun Station), making him the only town NPC to sell an end-game item.
Almost all of the Cyborg's names are letters in the Greek alphabet. Naming robots and cyborgs with Greek letters is common in science fiction.
The names Syn-x and A.N.D.Y are likely references to Re-Logic lead developers Whitney "Cenx" Spinks and Andrew "Redigit" Spinks.
The name T-3E0 is most likely a reference to C-3PO, a humanoid robot character from the American epic space-opera media franchise Star Wars.
The name Niner-7 may be a reference to the character Seven of Nine from the American science fiction television series Star Trek: Voyager.
His quote "My expedition efficiency was critically reduced when a projectile impacted my locomotive actuator." is a reference to the popular "Arrow in the Knee" quote from the action role-playing video game The Elder Scrolls V: Skyrim, where a guard tells the player: "I used to be an adventurer like you, then I took an arrow in the knee."
The quote "This sentence is false, or is it?" references a common logical paradox often associated with robots.
His quote "<Name of Tavernkeep> said I reminded him of a certain "EV2". Perhaps I should meet her." is a reference to the character EV2 in Dungeon Defenders 2.
On the Old-gen console version, he is summoned by the Queen Statue even though he is not female.
In the source files of the game, it is found that the Cyborg's light on his head is off when his party hat is on: