The Death Egg Robot is a mecha which appears at the end of Sonic Forces after Infinite's defeat, incorporating the Phantom Ruby and its power into a Death Egg Robot. Within the larger robot is a smaller mecha, which Dr. Eggman can independently pilot after the first one is destroyed. It is the seventh and final boss, which is ultimately defeated by Modern Sonic, Classic Sonic, and the Rookie.

Tier: 2-C

Classification: Robot/Mecha

Powers and Abilities: Superhuman physical characteristics, inorganic physiology (Type 2), self-sustenance (Types 1,2,and 3), large size (Type 1), bodily weaponry (The inner mecha can fire its claws in rapid succession), energy  projection (Has a laser which fires from its head. The inner mecha shoots lasers from its tendrils), fire manipulation (Can produce fire like columns of energy), perception manipulation, and illusion creation (As he can use the Phantom Ruby, Dr. Eggman should be capable of similar abilities to Infinite), pocket reality manipulation, dimensional BFR, forcefield creation (It has a forcefield that can repel several attacks before it's broken), homing missiles (It can fire missiles from its fingers), shockwave generation (Able to produce shockwaves from striking the ground), and duplication (Through the usage of the Phantom Ruby, Eggman materialized thousands of clones of Shadow, Chaos 0, Zavok, Metal Sonic, and Infinite to aid him in holding off the entire resistance), resistance to void manipulation, transmutation

Attack Potency: Low Multiverse level (12 Multiverses. Superior to Infinite, as he's powered by the original Phantom Ruby. Altered Null Space to contain an expanse of stars and nebulous clouds and created far more clones than Infinite could due to having the Original Phantom Ruby. The illusions of the Phantom Ruby are as formidable as the original. Fought with Classic Sonic, Modern Sonic, and the Avatar)

Speed: Infinite (Was stated to surpass Infinite, which was corroborated by Tails as it was overclocking the Phantom Ruby)

Lifting Strength: Multi-Stellar

Striking Strength: Low Multiverse level (Comparable to it's attack potency)

Durability: Low Multiverse level (Able to take sustained fire from the Burst Wispon, which demolish Egg Pawns in one-shot. Its inner mecha can take an onslaught of attacks from Modern Sonic,  Classic Sonic, and The Avatar, though it was ultimately destroyed by a "Triple Boost")

Stamina: Infinite (As a mechanical creation, it doesn't tire nor experienced fatigue)

Range: Tens of Meters, Planetary with abilities and attacks

Standard Equipment: The Phantom Ruby

Intelligence: None (It's a machine meant to be piloted), up to Supergenius (It's pilot, Dr. Eggman, is an evil Supergenius)

Weakness: None notable