Objective: Defeat Perfect Chaos.
The battle against Perfect Chaos is the grand finale of Sonic Adventure. As Super Sonic, you are invincible, but your rings constantly deplete. If your ring count reaches zero, you revert to regular Sonic and lose a life. Your primary goal is to continuously collect rings while attacking Perfect Chaos. The battle takes place in a flooded Station Square. Fly towards Perfect Chaos, avoiding his water-based attacks. Look for opportunities to boost into his head or core. Dash Panels are scattered throughout the environment; use them to gain speed and collect rings. Perfect Chaos will unleash various attacks, including large waves and energy blasts. Dodge these attacks while maintaining your ring count. The key is to stay aggressive, constantly flying towards Chaos and hitting him whenever an opening appears. There are no specific phases, but Chaos will become more aggressive as his health depletes. Keep collecting rings, keep attacking, and you will eventually defeat him.