Robby is the fourth most expensive Book 1 skin with the first being Torcher, Budgey being the second, and Billy rounding out third.

Robby wasn't always supposed to look like what he looks like as a skin he used to have full blue eyes and didn't have the chainsaw arm, which was originally just a normal arm (as revealed in the Piggy: Book 1 Credits).

In one of his livestreams on YouTube, MiniToon said that he got the idea for chainsaw arm from a certain character from Slendytubbies who had a weapon in place of one of their arms.

However, Kona claims the chainsaw was another person's idea, and Kona himself disliked it.

Robby was invented by Kona, revealed in the Docks - Chapter 9.

This is the first robot and/or cyborg skin, with the others being Mr.

On Twitter, MiniToon said the robot in Mall is not actually named Robby and is just a generic upgraded security droid.

Looks down and puts arms down, with occasional head twitching (overlays the current animation). Robby lunges towards the victim, slicing them with the chainsaw.

Similar to its idle animation but Robby moves his legs forwards. Robby stands still with their legs and arms spread apart. There are also two alternate variants of this skin in the item shop, that being: Robby - Dark, and Robby - Metallic Chrome (The former of which more closely resembles the main game skin). In addition, his cheeks are gone, and his right arm is normal while the other one is a chainsaw, since in Piggy it is vice versa. His appearance is largely the same as in base game, but his torso, soles, wrist and his chainsaw are yellowish. Robby also has a lighter shade of gray for his cheeks. Robby further has red, green, and blue wires poking out of its right eye while having a red pupil on his left. Robby is a gray robot pig with a chainsaw arm and one black ear. Along with Mimi and the Black Hole traps, he was added into the game when Mall - Chapter 10 was released and is also the main bot and antagonist of that chapter. ' Robby was programmed to be a security robot, but something seems to have gone awry.'

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