From Sonic Retro
|Games: Sonic Adventure 2, Shadow the Hedgehog (game), Sonic Generations, Sonic Generations (Nintendo 3DS)|
The Mono Beetle (モノビートル) is a mass-produced G.U.N. robot that is part of the Beetle series. It's the most basic of the series, and is used as a base from where all the other models are designed and modified from.
It has no attacks and stands still only to excitedly move up and down slightly when it spots a character, serving little more than surveillance drones for the military. Their purpose in gameplay is often to serve as Homing Attack stepping stones, much like the Spinners.
Sonic Adventure 2
In their debut appearance in Sonic Adventure 2, Mono Beetles are among the most common enemies in the game and as such can be found in many stages. Sometimes, it might be invisible and suddenly appear when a character comes near their position. Each Mono Beetle awards 100 points when destroyed.
Mono Beetles can be found in the following stages:
|Sonic||City Escape, Green Forest, Crazy Gadget|
|Tails||Prison Lane, Eternal Engine|
|Shadow||Radical Highway, White Jungle, Sky Rail|
|Dr. Eggman||Iron Gate, Sand Ocean, Lost Colony, Cosmic Wall|
Shadow the Hedgehog
The Mono Beetle returns again in both versions of Sonic Generations where they can be found in their respective stages from Sonic Adventure 2: City Escape in the console/PC version, and Radical Highway in the Nintendo 3DS version. Their behavior and appearance are the same as they were in Sonic Adventure 2.
|Sonic Adventure 2 / Sonic Adventure 2: Battle|
|Shadow the Hedgehog|
|Sonic Generations (Nintendo 3DS)|