In the Sonic Spinball sound menu, play music 0, 4, 2, 5, 5, 7.
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.
On the Sonic Chaos title screen, press UP, UP, UP, UP, RIGHT, LEFT, RIGHT, LEFT, START.
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.
In the sound test for Sonic Spinball, play music 0, 2, 1, 5, 6, 6.
In the Sonic Spinball sound test, play music 0, 9, 0, 1, 6, 8.
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.
On the title screen in Tails' Sky Patrol, hold UP and A, and then press START to enter a secret options menu.
In the Sonic Spinball soun menu, play music 0, 2, 1, 1, 6, 6.
Station Square Emblems
Mystic Ruins Emblems
Egg Carrier Emblems
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.
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:
There are 3 hidden chao eggs, 1 in each adventure field. In Station Square, go to city hall and you should see a rock egg thingy. Take that into the antique shop and set it down. Next, take the Golden chao egg off its cushion or whatever and some bars should come down and cover the door. Place the egg shaped rock where the golden one was, and the bars should move away from the door.
In the Mystic Ruins, go to the waterfall beside the trolley. If you wait a little while, a silver chao egg will fall from the waterfall and you can take it to the chao garden.
In the Egg Carrier, go to prison hall where E-102 set Amy free. In one of the cells should be a black chao egg.
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.
In any stage where Tails tags along, a second player can pick up Controller 2 and move him. Use Tails to get more Rings!
Okay, first go to Hotel Pool Area, then go to the right corner near the entrance, then fly up the ceiling not moving the joystick, then fly into the wall above it, you will then go inside of it, fly over to Emerald Coast(while in the wall) you can't go very far. It's difficult to understand but once you do it, it's the easiest thing in the world.
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.
To play as Metal Sonic, colect 130 emblems in the game. Metal Sonic will be unlocked in trial mode.
To unlock Mission Mode for a particular character, finish the main game.