The arena is open and you're ready for action and adventure with your BioMotor Unitron robot. The kingdom of Rhafiace has begun its Unitron robot tournament to reveal the master of masters and it's up to you and your robot to claim fame as the mightiest of all! Explore the kingdom with your Unitron to acquire skills and weapons, and learn tactics that will aid in your quest for the master of masters title. Search the Land of Tridiss and its mysterious dungeons for hidden secrets. With just the right material and equipment, your engineer can create and customize your Unitron robot like no other. Don't get too eager--you're only a rookie and you need to work your way up the ranks. In the end, however, there can be only one true master, and perhaps you'll learn the secret of the Unitron crystals.