Mechtropolis

Mechtropolis is the eighth world that the player will naturally encounter during the run. It is currently the third to last world. Null's status as a world is debatable, so depending on whether it is a world or not, Mechtropolis is either the third or the fourth to last world.

The Vigilante Droid makes its debut in Mechtropolis, being exclusive to this world. Higher variants of some droid types that appear become even more common, such as the Cryo 3.0 and Pyro 3.0. Xero 3.0s can also appear, but only from Mystery Buttons or if (some) other Droids are rerolled with a Game Die or a Magic Die, or if something is rerolled by a D20 (in this world only).

Environment
Mechtropolis is an urban city street. The floor is a black road with grey walkways at the sides. The brick walls alternate between red and blue. Environmental objects that appear in this world include cars, trash cans and street lamps. This world takes place at night, unlike most others.

Mechtropolis lacks environmental hazards. However, it has Turrets. Turrets naturally spawn in certain rooms and always spin around, making a full cycle once every 10(?) seconds (assuming you arent laggy), with its direction of rotation determined by the color of the turret. It shoots out bullets at a rate equivalent to Rapid-Fire Droids, but their bullets deal 5 damage unlike rapid fire droids. Turrets are indestructible and their direction and speed of rotation cannot be affected while active, but they will be permanently disabled after their respective room is cleared.

Turrets may spawn in the middle of the room or on top of cars. Like any other droid with a ranged weapon, they cannot aim upwards or downwards, and their bullets can be nullified by the Golden Shield. The player can also stand on top of turrets without taking damage.

Trivia

 * Mechtropolis is a portmanteau of the words "mechanical" and "metropolis".
 * Mechtropolis is the only world named this way.
 * Mechtropolis is the only world you can naturally encounter that does not have more than 1 separate word in the name.
 * The name Mechtropolis, although derived from two words, is technically one word.
 * Mechtropolis is the only world where the color of the walls changes from room to room.
 * It alternates between red and blue.
 * Mechtropolis used to have 10 rooms with enemies, as it was the last world (aside from Null) before the addition of Atomic Factory.
 * As of Atomic Factory's introduction, Mechtropolis now has 9 rooms with enemies and a shop as the last room.
 * Mechtropolis is the last world that naturally occurs at night.
 * Mechtropolis, The Darkness (sometimes), and Mount Whirl are the only worlds with no environmental hazards, if you do not count the Turret as an environmental hazard.
 * The song that plays in this world is called Scattle - Inner Animal.