Sonic the Hedgehog Advance
Books: Game Boy Advance Secret Codes - Secret Codes 2003Last Updated: 6/6/03. Defeating Eggman Amy Grind Unlimited tries in Casino special stage Get Emerald in Ice Mountain Act 2 Hidden area in Secret Base Act 1 Tails as partner Moon Zone Hidden sound test mode songs Easy rings
Defeating EggmanOnce you make it to the final Eggman on the X-Zone Act 1, simply stay far away from him. If you see Robotnik using his robotic machine hand, wait until he tries to grab you. Dodge his hand and go over to him to attack. Continue to do this until you destroy his machine. Note this trick is extremely hard to do with Amy since you have to use her hammer.
After collecting the Chaos Emeralds, complete the game with all the characters. Complete Final Zone with Sonic again and you will turn into Super Sonic and go to a new stage. Tap buttons to escape his traps. Use your Head Bash on him eight times to defeat him. Be careful, as you will lose rings as you fight.
Amy GrindSelect Amy and go to any level. When you see a rail, press R on it to slide with her.
Unlimited tries in Casino special stageGet the checkpoint thing immediately before the spring. Then, try the special stage. If you fail, there is an extra life to the right, directly above the swinging boat thing. You can get unlimited tries because every time you die the extra life returns.
Get Emerald in Ice Mountain Act 2Chose Tails and when you fail to get the Emerald, go down. A check point is located there. Follow the string until you see a platform. There is an extra life and some spikes here. Get the life and die. Once you resume at the check point, fly up to get to the spring. Do this again if you fail.
Hidden area in Secret Base Act 1Choose Tails. Go to where the first hand swing is located. When it takes you down, go back to where it was found, then jump down and start flying. As soon as you start flying, do not press A. Tails will slowly go down and you should see another part of the level.
Tails as partnerHighlight Sonic at the character selection screen and press Up. Next, highlight Tails and press Down. Then, highlight Knuckles and press L. Finally, highlight Amy and press R. Highlight Sonic and press A to select him. Tails will follow you during the game, but cannot be controlled.
Sonic should already be highlighted at the character selection screen. Press Up, Right, Down, Right, L, Right, R, Right, A. If done correctly, Sonic will be highlighted again. Select him, and a ring sound will confirm correct code entry. Tails will follow you through the game but cannot be controlled. Repeatedly press A to make Tails fly. Note: Tails cannot pick you up while he is flying.
Moon ZoneCollect all seven Emeralds for all characters. Successfully complete the game as Sonic to unlock the Moon Zone.
Hidden sound test mode songsTo get more than the 39 default songs in sound test mode, successfully complete The Moon Zone, Extra mode, or unlock the Super Sonic Ending. Three additional songs will be available.
Easy ringsPlay the first level. Press Start + Select + A + B to reset the game. Go to the Chao Garden and you will have the rings that were collected, but reset at the start of the next act of the level. Play the special stage and immediately before you hit some rings, do any trick (tap B). You will get every ring in the row. Go to time trial mode and play any level you are proficient at. Get lots of rings, then go to the Garden. The game will add the rings to your total.
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