Grow Chao Stats With Animals
Introducing your Chao to animals is a great way to influence its racing stats. Go to the Chao garden and give your Chao the following animals to grow the desired stat:
Flying: Birds
Running: Rabbits, deer, wallabies
Strength: Lions, gorillas, elephants
Swimming: Beavers, seals, penguins


Helium Music: Sonic Spinball Mini-Game
In the Sonic Spinball sound menu, play music 0, 4, 2, 5, 5, 7

Level Select: Sonic 2 Mini-Game
On the Sonic The Hedgehog 2 title screen, Tails will blink his eyes once, then two times. Hold DOWN + LEFT + A + B, press START when Tails' eyes are closed on the second of the second set of blinks

Level Select: Sonic Chaos Mini-Game
On the Sonic Chaos title screen, press UP, UP, UP, UP, RIGHT, LEFT, RIGHT, LEFT, START

Level Select: Sonic Labyrinth Mini-Game
On the Sonic Labyrinth title screen, press UP, UP, RIGHT, RIGHT, RIGHT, DOWN, DOWN, DOWN, DOWN, DOWN, DOWN, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT

Level Select: Sonic Spinball Mini-Game
In the sound test for Sonic Spinball, play music 0, 2, 1, 5, 6, 6

No Gravity: Sonic Spinball Mini-Game
In the Sonic Spinball sound test, play music 0, 9, 0, 1, 6, 8

Second Player is Tails
In any stage where Tails tags along, a second player can pick up Controller 2 and move him. Use Tails to get more Rings

Sonic the Hedgehog Triple Trouble - Zone Select
In Sonic the Hedgehog Triple Trouble, wait for the Sega logo to fade out, and then hold UP. Keep holding UP as Knuckles touches the gems, and press START just as he touches the third gem. If you did it right, you will hear a chime. After choosing a character, you will enter the zone select menu

Tails' Sky Patrol - Secret Options Menu
On the title screen in Tails' Sky Patrol, hold UP and A, and then press START to enter a secret options menu.

Unlock Game Gear Minigames
To unlock minigames, collect a Sonic Emblem or complete ten missions. Once you unlock the first, the Minigame option will appear on the main menu.

Unlock Metal Sonic
To play as Metal Sonic, colect 130 emblems in the game. Metal Sonic will be unlocked in trial mode.

Unlock Mission Mode
To unlock Mission Mode for a particular character, finish the main game

Zoom With A View: Sonic Pinball Mini-Game
In the Sonic Spinball soun menu, play music 0, 2, 1, 1, 6, 6

Hint: Get Golden Egg in Shop
Have you ever seen the golden egg in the shop at Station Square? To get that egg, you have to find a rock. The rock is located near City Hall, which you can find at the end of Station Square. First, carry the rock to the shop. Next, take the golden egg off the button. A cage should cover the windows and the door. Then, put the rock on the button. Now grab the egg, go to the hotel, and take the elevator to Chao World. Finally, hatch the egg

Hint: Mission 60
Select Big at the Character selection screen, and then go to the Mystic Ruins. Go behind the train and you will find Misson 60. To complete it, go to the Ice Cap. You will need to break through some ice to reach the dinosaur's mouth