Shadow the Hedgehog is a character and rival boss in Sonic Generations. He is the ultimate life form, created 50 years ago by Dr. Gerald Robotnik on Space Colony ARK. His battle is in the Dreamcast era. After defeating him, he will give you the yellow Chaos Emerald.
His battle takes place in Final Rush. His battle is a race, and you have to get 2 Energy Cores to power up. During the battle, he will use a Shadow Boost, like Sonic. If Shadow gets the Energy Cores, then he will launch Chaos Spears. If Sonic gets the Energy Cores, he will charge at Shadow.
- Sonic Generations is Shadow's first appearance on the Hedgehog Engine.