Defeat the Z'Grute.

Don't let the air taxi take damage in Luminopolis.

Play a single-player game.

Defeat Matthew Patel without losing a life.

Picked up the IDS device

Beat the game without dying.

Get to the Star Light Zone.

Get all the Chaos Emeralds.

Clear the Green Hill Zone.

Get 100 or more rings.

Acquire Zeus’ Fury

Completed Steeplechase, Bastion, Marksman and Calligrapher within the Gala Mode.

Cleared the stage, "Quiet Ambition."