Welcome aboard the Egg Shuttle, offering light-speed access to each of the park's attractions! Perfect for jittery visitors with no attention span to spare on getting there.
— Dr. Eggman, Sonic Colors
It has all the acts that they can play and try to beat their time score in. Players are not required to play in the Egg Shuttle to beat the game. In it, the player does not get Red Rings, but only runs through the level. Once they lose all of their lives, they must restart from Tropical Resort Act 1. Also, any boost energy that is left over from the previous level is brought into the next.
The Egg Shuttle unlocks after defeating both bosses of Sweet Mountain and Starlight Carnival. Therefore, it consists always of at least all acts and bosses of Tropical Resort, Sweet Mountain and Starlight Carnival (a total of twenty-one stages). The more acts and bosses of other zones are completed during normal play, the more become available in the Egg Shuttle, until all forty-five stages are added.