's cry in battle is a distorted version of Champion Blue's theme with only one channel. It is also often found on Glitch Trainer rosters as the first Pokémon, leading many players to think that its cry is instead the battle music. However, its cry remains the same even if it's encountered as a wild Pokémon using a cheating device.
Upon being withdrawn from the PC or having its stats viewed, 's cry is a slow, single-channel version of the Route 4 theme. This, akin to its battle cry, replaces the background music that was playing earlier.