Drill Eggman II is mostly an upgraded Eggmobile with two drills (colored yellow with red stripes) and a rocket under it.
Unlike its previous counterpart, this machine actually drills. When the battle begins, the screen rumbles, and rocks and spikes fall from the ceiling. The player must dodge the spikes. After a short time, Dr. Robotnik will drill though the ceiling with his drills in a vertical position. He will then shift his drills in a horizontal position and attempt to ram into Sonic. After this, he will return into the ceiling and the process will start over. Like all bosses in Sonic the Hedgehog 2, Drill Eggman II takes eight hits to be defeated.
In the pilot episode of Adventures of Sonic the Hedgehog, Robotnik uses a drill tank to dig underground to catch Sonic but fails when Tails grabs Robotnik, sending him out of control. It also appears in the episode "Lovesick Sonic" it was renamed the Egg-o-Matic Tunnelizer and Town Terrorizer.