When Pikachu and Pichu Brothers landed upon it, Houndour got enraged and chased after them. It tried to emulate Pikachu and jumped off the fence to bounce off to the other side from Snorlax's belly, but failed when Snorlax moved from its place. It chased the three around until it nearly knocked the playground over. Houndour, Pikachu and Pichu Bros. and their assortment of friends managed to save the playground after a struggle.
None of Houndour's moves are known.