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| Screen Settings | 100% | |
| From the Title Screen press R to change the screen settings. The original setting is for GBA, LCD 2 is for GBA SP, and LCD 3 is for playing the game on a TV. | ||
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| Boss Time Attack | 100% | |
| Completed the game. Do not have all Emeralds but have a Golden Ring in all stages (Act 1, 2, 3 and vs. Boss). | ||
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| Amy proves she loves Sonic | 98% | |
| As Sonic, partner-up with Amy. Amy will then make a different pose. | ||
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| Sonic The Hedgehog Reference | 98% | |
| In Zone 2, Sunset Hill, the music that plays is a remix of Green Hill Zone from Sonic The Hedgehog. | ||
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| Short-cut for Zone:4 Act:2 | 98% | |
| When you're at the part below the Turtle Robot, play Knuckles as the leader (with a partner) and climb up the wall. | ||
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| Amy: BIG Hammer | 98% | |
| As Amy, partner-up with Knuckles then press B. | ||
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| Defeat Hagman's Big Hammer | 98% | |
| Use flying fox to deafeat the Hammer. Go close but not too close and hit the HAMMER. Do not get too close or you will get electrocuted! | ||
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| Play As Knuckles | 98% | |
| Start a new game and successfully complete all 3 Acts of Sunset Hill Zone to unlock Knuckles. | ||
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| Amy: Running Spin Dash | 98% | |
| As Amy, partner-up with Knuckles then press DOWN & A. | ||
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| Play As Amy | 98% | |
| Start a new game and successfully complete all 3 Acts of Toy Kingdom Zone to unlock Amy. | ||
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| Eggman | 96% | |
| Play as Knuckles and Tails. Have Knuckles as your lead and when you face Eggman, use Knuckles' glide. Having Tails as your partner will give Knuckles more elevation on his glide, allowing you to hit Eggman's weak spot without any elevation help from the hands or the balls that fly around. | ||
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| Knuckeles: Double Jump | 96% | |
| As Knuckles, partner up w/Tails. Press A twice. | ||
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| Play As Cream | 96% | |
| Start a new game and successfully complete all 3 Acts of Cyber Track Zone to unlock Cream. | ||
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| Amy: Spin Dash | 96% | |
| As Amy, partner-up with Sonic. Press both DOWN & A to make Amy spin. | ||
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| Sound Test | 96% | |
| Win the game. You do not need all the Chaos Emeralds. The "Sound Test" option will appear just above "Delete Game Data" in the options menu. | ||
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| Unlock Knuckles, Cream and Amy | 95% | |
| To unlock Knuckles, Cream and Amy you do not have to delete the game. You only have to defeat the Final Boss as either Sonic or Tails. Then revisit all of the Sunset Hill stages including the boss stage. For Amy complete all the stages for Toy Kindgom including the boss stage. And finally for Cream complete all the stages of Cyber Track including the boss stage. You do not have to have any Chaos Emeralds to do this. | ||
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| Secret Stage Mode | 95% | |
| After complete all 7 special stages, return to the MAIN MENU and press Up, L, Down, R, Right, Left. | ||
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| What to do for the final boss. | 93% | |
| (this is a hint) After you beat the boss room in the zone, chaos angel , it will take you to another boss. thats the final boss. if you loose all of your lives to him dont worry you dont have to go against the first boss there again. when you get back to the zone run past the boss room and there will be a spring. jump on it and it will take you to a plat form wit a silver ring over it with a eggman face in it. jump in it and it will take you to the final boss again. | ||
| By: redsnakerr(204) | ||
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| Easy way to beat the final boss | 93% | |
| The way to beat the final boss is hard, you have to jump on top of the bombs and hit the glass part eggman is sitting at. but this is the easy way. become tails and partner up with anybody. just fly to the glass part eggman is sitting at and it hurts him. do this a few times and you will win. | ||
| By: redsnakerr(204) | ||
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| Hyper Sonic look | 83% | |
| This cheat is for those who have Super sonic Game shark code And pass through certain objects code.First Enable both the codes then become super sonic after that Press Select and you will see that sonic looking like hyper sonic | ||
| By: Maniambored(11) | ||
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| How To Get Amy (the RIGHT way!!!) | 81% | |
| Top get Amy you have to have Sonic as the leader and finish Stage 4 (Toy Kingdom) Act 3. Otherwise it wouldn't work. --Sydnayy | ||
| By: sydneyc95(22) | ||
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| Die Eggman!! | 81% | |
| To destroy eggman on the last level on sonic advance three choose cream as you leader and knuckles as your partner. Chese should be flying around you. Stand a little to the right or left of him and press B. Keep doing this until Eggman dies. | ||
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| Ultimate Emerl (Without doing Virtual training) | 80% | |
| To do that Check out sites like Neoseeker Which have the code.(Sorry I can't Give you the codes myself).Another thing on my ROM All the other players also get some weird glitchy colors. | ||
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| Extra Finalboss!!! | 78% | |
| First get all Chaos emeralds then battle the endboss,after you defeat him he absorbs the chaos energy to become stronger.You can still be Super Sonic | ||
| By: gamefreak1(541) | ||
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| Finish game with out doing anything and all chaos emrlds and special stages unlocked | 70% | |
| Hint only works sometimes.click all buttons during intro but the ones that cancel it hint2tme attack bosses a ulocked hint3if it does not work he first time do it again | ||
| By: sonic32320(8) | ||
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| Sonic w/ hammer | 60% | |
| ON the team put sonic (leader) and amy (partner) and them press b | ||
| By: kiubyx(38) | ||
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| How to get chaos emeralds | 57% | |
| In a zone collect all the chao.( Do this in each zone) then in that zone go into the big ring. that will take you to a room with a bunch of omachao. go to the part where theres black in the side of the wall. thats the chaos play ground. After collecting all the chao in the zone go into the zone's chaos playground. ther will be a emerald floating in the. jump and get it. do this in each zone and you will get all the chaos emeralds. | ||
| By: redsnakerr(204) | ||
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| Tern into a ball in the air | 44% | |
| Get on a spring and hold L+ R and hold down. | ||
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| Eggmans big stupid hammer | 42% | |
| When the hammer goes to your side quickly jump on to the round bit and pres a for three seconds as sonic | ||
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| What is the code to change into super sonic in sonic advance 3 | 41% | |
| 5A55BF23 | ||
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| Cheat codes for sonic advance 3 GBA | 23% | |
| Press L+R and select in main menu By liam | ||
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Sonic is back. And this time he’s bringing all his friends to break more than the sound barrier!! Dr. Eggman is up to old tricks again, splitting the world into 7 parts and trying to make each his own personal empire. Sonic and Tails must reunite with their friends Cream, Knuckles, and Amy to restore order to the world. 
