Zoids Legacy 
Game Boy Advnance - GBA
RPG
 
For many generations, Zoids and their proud pilots have been locked in combat for control of the planet Zi. During a recent weapons experiment, Zi underwent an accidental time-space fusion that brought together warriors from two eras: the Chaotic Century and the New Century. Now you must help Van, Fiona, Bit Cloud, and Zeru use the full power of the Zoids to bring peace to their world. You can create your own Zoids and upgrade them to perform combination attacks.