Roy first encountered Fuecoco when the Rising Volt Tacklers emergency landed on the island he lives on. Having bonded with Roy, it eventually decided to join him as his Partner Pokémon. It has an appreciation for battling and especially for Friede's Charizard. Through its journeys it has shown some strong battle strengths and eventually evolved in battle against Liko during the Terastallization training. It has the moves Flamethrower, Stomping Tantrum Flame Charge and Disarming Voice

Roy first encountered Wattrel after it stole his sandwich near the Rising Volt Tacklers airship. After befriending it, Wattrel decided to come with him and became a key member of Roy's team. However, it still struggled to fly and eventually evolved to rescue Roy from falling off a cliff

Roy first encountered Fuecoco when the Rising Volt Tacklers emergency landed on the island he lives on. Having encountered Fuecoco while out, he bonded with it and its singing and eventually went to find Fuecoco again. After joining the Rising Volt Tacklers, Fuecoco decided to join Roy as his partner Pokémon. Fuecoco is a very happy and carefree Pokémon, and cares a lot about Friede's Charizard

Roy first encountered Wattrel after it stole his sandwich near the Rising Volt Tacklers airship. Roy decided to investigate it further when he saw it wasn't with the rest of the Wattrel and discovered that it can't fly, so Roy decided to help it out. After it first flew it returned to Roy and Roy caught it