If you haven't already unlocked him, you may now play as Big. (2)

Learn how to unlock and play as Big the Cat in Sonic Adventure. This guide covers the steps to access Big and his gameplay introduction.

If you haven't already unlocked him, you may now play as Big. (2)

Go back to Tails' Workshop. Tails will finish the plane, and then fly off in search of Sonic. He will find him at Red Mountain, near the Egg Carrier. Sonic hops in the plane and they fly off to pursue the Egg Carrier. You'll then play Sky Chase Act 2.

Tails will land (well, crash-land) the plane on the Egg Carrier, and Sonic and Tails will hop out. Sonic is amazed at the size of the ship, but Tails says there isn't any time to gawk, as they need to find Amy. Sonic agrees, and they set off.

Head up the runway and hit the spring. Take a few more steps forward, and you'll hear Eggman's voice. He will brag about the power of the Egg Carrier, and then change its shape. He then says that the only way to get to him now is to go through the Sky Deck. Head up the ramp and go through the door to enter stage five, Sky Deck.

When Tails emerges, he ends up in the ship's hull. Run over to the left and go down the stairs, then look around for a gold half-egg thing (a lift pod). Jump in it to rise to the ship's deck.

On the deck, you will find Eggman and Amy. Eggman takes the bird Amy was guarding. Turns out, it was keeping a Chaos Emerald. Eggman then calls the robot E-102Y to fight Tails.

Mini-Boss: E-102Y

• Hits to Defeat: 3
• Difficulty: Easy

Run at him and attack quickly. If you attack him constantly, he won't be able to get an attack in edgewise.

Just as Tails is about to finish off the robot, Amy runs in and tells Tails to stop. She says that the robot helped her, and is her friend. Tails decides to let the robot go, as Amy must have her reasons for not wanting him to be harmed. Just then, Tails notices that the ship is losing altitude. Immediately Sonic sets off to find Eggman, and Tails takes Amy and flies off the Egg Carrier before it explodes.