And done in just five days.
Definately one of the Mad Doc's most deadliest machines, The Egg Beater is one destructive battlesuit, heavily inspired by several Classic Era Bossess like the Green Hill Wrecking Ball, The Death Egg Robo, the Big Arm, and the Palmtree Panic Robo.
The Egg Beater was built to combat and counter any move Sonic could throw at it, nearly pushing Sonic to his limits and defeating him with ease. Pretty much the one time Eggman has claimed a brutal victory over Sonic.
However it did had a weakness. Eggman was so focused on building the mech to counter Sonic, he fail to build defenses against attacks from anyone else that's not Sonic, thus the combined attack of the Freedom Fighters and Chaotix easily destroyed the Egg Beater.
Was originally going to make the setting Knothole, but I rather do a more notable location like Green Hill.