What can I include for you
This article's name is conjectural.
Although this article is based on official information, the actual name of the article's subject is pure conjecture.

Knuckles facing off against the Tunnelbot in Lava Reef Zone Act 1.

The Tunnelbot[1] is a robot built by Dr. Robotnik, that briefly appears at Lava Reef Zone Act 1 in Sonic & Knuckles. The robot seems to be a larger variation of the first Tunnelbot from Marble Garden Zone, with four drill attachments.


The Tunnelbot appears three times in Lava Reef Zone, once in Sonic's story and twice in Knuckles' story (depending on if the player takes the upper pathway behind the robot). In both stories, when the player faces it in the open area, the robot is about to start the drilling process, which makes the ground below collapse. In Sonic's story, the robot falls into the lava pool, and in Knuckles' story, it attempts the same process but stays on the edge of the upper platform where it remains intact.



  1. Although an indirect source, The GHZ refers to this enemy as the one from Sonic the Hedgehog 3; in addition, the Sonic the Comic #36 Q Zone refers to the Marble Garden Zone Act 1 boss as “a” or “the” Tunnelbot, and the uncanny resemblance also strongly suggests that this would be a second Tunnelbot.

Main articles (Sonic 3, Sonic & Knuckles, Sonic 3 & Knuckles) | Gallery (Sonic 3, Sonic & Knuckles) | Beta elements | Staff (Sonic 3, Sonic & Knuckles)