This Munchlax is a normal-type Pokémon owned by May. It is the fourth Pokémon captured by May, and her fifth Pokémon acquired overall.
May's Munchlax was the first Generation IV Pokémon to appear in the Anime. It was a greedy creature, as were most of its species, and while travelling with May in Hoenn it did little except eat. It wasn't until May travelled to Kanto that Munchlax truly became part of her team. During a battle with a Vileplume, Munchlax learned Focus Punch, followed almost immediately by Solar Beam, mastering both attacks within moments allowing it to defeat Vileplume. Its first contest battle was against Harley's Octillery. Although it put up a good fight, Octillery won, making Munchlax the only known one of May's Pokémon that had been defeated by one of Harley's Pokémon. Munchlax battled Harley again in the Grand Festival alongside May's Eevee where they worked together to defeat Harley's Cacturne and Wigglytuff. Munchlax also fought alongside Combusken against Soledad but they were both defeated.