The Egg-Wily Machine X is a robot made by Dr. Eggman and Dr. Wily that appears in the Sonic the Hedgehog and Mega Man comic crossover event, Worlds Collide. It is essentially a hybrid of the Wily Machine 9 and the Egg Destroyer Battlesuit. Although it has been mentioned several times throughout the comic crossover, the robot actually appears to be worked on by Orbot and Cubot inside the Wily Egg while Eggman and Wily were thinking of ways to betray each other if their plan to conquer the world fails. (WC #8)
The Egg-Wily Machine X has a variety of abilities: it has the claws of the Death Egg Robot, can fly, fire many blasts - including one that can knock Super Sonic back, and can create a powerful shield that needed a blast with similar power to a sun to destroy it.
- Its name comes from the combination of final bosses through both the Sonic the Hedgehog and Mega Man video games, as "Wily Machine" and "Egg" robots are combined to make the name of this unit, the X comes from the crossing of Eggman and Wily's designs.