- Not to be confused with Death Egg Mark II from Sonic the Hedgehog 4: Episode II, as well as the Archie Comics second Death Egg.
Quite dissimilar in design to the original Death Egg deployed in Sonic 2, this battle station has six colorful subsidiary globes connected to the central sphere, as well as an assortment of arm-like apparatus attached.
In order to decide who will pilot Tails' single-seater rocket (the Lunar Fox) up to the Death Egg II, the heroes hold a fighting competition, which gives the first eight levels of Sonic the Fighters. The player character then blasts up to the space fortress, where the two final battle arenas are set:
- Death Egg's Eye, where Metal Sonic is fought.
- Death Egg's Hangar, where Dr. Eggman attacks in his Mech even while the countdown to explosion gets into its last 15 seconds.
When Eggman is defeated, the Lunar Fox departs, and the Death Egg II is shown exploding into tiny pieces.
- Death Egg II resembles Dr. Eggman's Incredible Interstellar Amusement Park.
- Oddly enough, the battle with Dr. Eggman is a bonus round.