Egg Golem
From the Sonic News Network, the Sonic Wiki
The Egg Golem is a boss character appearing in Sonic Adventure 2. After Knuckles the Echidna defeats King Boom Boo, Eggman appears and summons a giant animated stone statue called the Egg Golem to battle Sonic the Hedgehog. To defeat the Egg Golem, Sonic must run to his back, jump across the platforms that stick out, and attack Golem's control mechanism atop its head. You can also Homing Attack the platforms with glowing symbols.
In the Dark Story, Sonic immediately jumps up and kicks the control mechanism, causing the Egg Golem go haywire and turn on Eggman. In order to defeat it, Eggman has to use his Volcan Cannon to destroy its internal power generators. Once all three of them are destroyed, the Egg Golem becomes disabled and sinks into the quicksand.
The Egg Golem also appeared in the Sonic X adaptation of Sonic Adventure 2. It was remotely controlled by Bokkun who used it to fight Sonic and Knuckles. The two heroes had a hard time with the golem, but eventually Cream the Rabbit stole the remote control from Bokkun, and made the Egg Golem chase him into the desert. It later appeared standing in the desert during Super Sonic and Super Shadow's fight against the Finalhazard, with Bokkun standing on its head.According to an eyecatcher information card from Sonic X, the Egg Golem is 57 meters tall and weighs 250 tons[1]. The Egg Golem fights by smashing its hands and head against the circular platform that Sonic or Eggman is standing on. It can also create an electrical field around itself to repel attacks, or spin its arms around itself in order to sweep enemies from the platform.
A similar character was also used in the game Sonic & Knuckles as the first act boss in the Sandopolis Zone. Like the Egg Golem it was an animated statue, vulnerable only on its head, and although it was not named, it may have been a partial inspiration for the later character. It is unkown if this boss was an Eggman boss or a guardian for the pyramid.
