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Mono Beetle

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The Mono Beetle (モノビートル Monobītoru?) is a robot deployed by the military organization Guardian Units of Nations. It is the most basic model in the Beetle series and its design serve as the template for all the other robots in the Beetle series. It appears as an enemy in Sonic Adventure 2, Sonic Adventure 2: Battle, Shadow the Hedgehog and Sonic Generations.

As the Mono Beetles serve as little more than surveillance drones, presumably to support the security functions of G.U.N's bases, they are rather harmless and can occasionally be used as "steps" for Sonic and Shadow to cross by using Homing Attack.


In Sonic Adventure 2, Sonic Adventure 2: Battle and Sonic Generations, the Mono Beetles basic structure resembles grey-colored balls with a blue outline. On the top of the Mono Beetles, they have a blue cap with a red stripe, with G.U.N.'s symbol and the number "05" on it. Also, right below their cap, from the front edge of their main body to behind their back, the Mono Beetles have circular dishes, with red and blue stripes on the side, attached. The Mono Beetles are also equipped with security cameras, which resemble yellow lenses, in the front.

In Shadow the Hedgehog, the Mono Beetles are given a slightly different design which make them closely resemble Bomb Wings. In this game, rather of their usually blue colors, the Mono Beetles are given a green color instead. Also, their dish attachments are made thicker, resembling jet engines and have a pair of small wings attached to the sides.

Attack pattern

The Mono Beetle has no method of attack, unlike most other robots in the Beetle series, and will only hover around in the air. When a Mono Beetle espies the player, its "eye" will light up and it will bob up and down excitedly. Sometimes, a Gun Beetle can be invisible to the player can and appear out of nowhere when a character comes near it.

Game appearances

Metal Harbor, Sonic Adventure 2

A row of Mono Beetles in Metal Harbor.

Sonic Adventure 2 and Sonic Adventure 2: Battle 

The Mono Beetle first appeared in Sonic Adventure 2 and Sonic Adventure 2: Battle. They are some of the games' most common enemies and are found in nearly all the games' stages:

Character Stage
Sonic City Escape
Green Forest
Crazy Gadget
Metal Harbor
Tails Prison Lane
Eternal Engine
Knuckles Aquatic Mine
Shadow Radical Highway
White Jungle
Sky Rail
Dr. Eggman Iron Gate
Sand Ocean
Lost Colony
Cosmic Wall
Rouge Security Hall

Shadow the Hedgehog

The Mono Beetles made their first return in Shadow the Hedgehog. In this game, they are a common enemy in the stages where G.U.N.'s forces can be found, such as Westopolis.

Sonic Generations


A Monno Beetle on Radical Highway in Sonic Generations

The Mono Beetles reappeared once more in Sonic Generations, with their behavior and appearance being just as they were in their original game. They appeared in both acts for Radical Highway on the 3DS version and in both acts for City Escape on the console version.


This robot was included as a bonus figure with a Shadow figure from Jazwares for the "Sonic through Time" line. However, it incorrectly says "2000" instead of "2001", which is the correct year Sonic Adventure 2 was released, on the box.

As of 2012, the date hasn't been changed despite the fact that Jazwares added a new sticker to cover the outdated 20th Anniversary logo.



Sonic Adventure 2

Main article | Gallery | Beta elements | Re-releases (Battle | 2012)
Shadow the Hedgehog

Main article | Gallery
Sonic Generations

Main article | Gallery | Beta elements

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