Titre original : For Better for Worse (1)
It is time for the 10th Annual Medabot Citywide Ro-Battle. Ikki and Metabee want to enter but of course they can't get along and Metabee refuses to listen to Ikki in the Ro-Battles. They both manage to get to the finals anyway but the final test is Koji and Sumilidon. Can Ikki and Metabee get a grip and defeat Koji and Sumilidon. Find out in Part 2.