Cheats for Medabots AX (GBA)
During a Robattle, jump to a top corner and hold Down to charge your special. When full, press Select close to your opponent to do serious damage. Repeat if necessary.
You must have the Devil Medal, Peck Strike, Dopa Punch, or Doppin Punch. Use any one of those attacks and it will take out one entire body part.
After defeating everyone in the Medabot tournament, wait until the credits end. You will see someone robbing your trophy. After the short intermission, the Rubberobo Gang will can be challenged at the normal places you usually battle (Forest, Factory, etc.). Although you cannot defeat them completely, you can get Medaparts.
After you beat all the challengers in the tournament, the Rubberobo Gang will steal your prize. You will then get to fight various Rubberobo members at all locations on the map. There are certain areas on the map that contain the four Rubberobo Captains (Squidguts, Gillgirl, Shrimplips, and Seaslug). You will fact them in that order. Seaslug uses the Ultimate Medabot, Mega-Emperor. Mega-Emperor is has extremely high firepower and armor. Make sure you have a very strong team.
After finishing the tournament, face the Rubberobos. It takes skill and practice to defeat them, especially Seaslug. However, with the missile head, shoot accurately and it will be a one-hit kill. After defeating the Rubberobos, open your tournament prize for Arcbeetle, the Medabot Space Fighter X uses. The Prominence (head part attack) is only valid twice per battle. Although limited in number, it makes up in power.
Easy Meda parts:
After you defeat a stage (Lake, Arctic, etc.), play the stage again. If you win, you will get a Meda part. If you lose, you will lose a Meda part. If that happens, turn off the game and turn it back on again to avoid the loss.
If you have both versions of Medabots AX, get another Game Boy Advance to trade. You are basically trading to yourself.