• English / United States: Bugsy
• Japanese / Japan: ツクシ
• Japanese (Romanized) / Japan: Tsukushi
• Japanese (TL) / Japan: Tsukushi

Bugsy is the Gym Leader of the Azalea Town Gym who specializes in bug Pokémon. When Ash Ketchum entered the Azalea Gym, Bugsy was up in a tree. Bugsy purposely designed the Azalea Town Gym to mirror a forest, the natural habitat of Bug-type Pokémon. Ash Ketchum challenges Bugsy to a 3-on-3 Gym Battle for the Hive Badge.

The Azalea Town Gym Battle starts off with Bugsy's Spinarak facing off against Ash's Cyndaquil. Bugsy's Spinarak was able to slow down Ash's Cyndaquil with String Shot, forcing Ash Ketchum to recall his Pokémon. Next, Bugsy's Spinarak faced off against Ash's Chikorita. Bugsy questions Ash Ketchum's choice in using a Grass-type Pokémon against a Bug-type Pokémon. Regardless of the type disadvantage, Ash's Chikorita was able to defeat Bugsy's Spinarak. Next, Bugsy used Bugsy's Metapod to face off against Ash's Chikorita. To Ash Ketchum's surprise, Bugsy's Metapod was able to easily defeat Ash's Chikorita. Bugsy's Metapod then faced off against Ash's Pikachu. Ash's Pikachu was able to chase down Ash's Metapod and zap it with a Thunderbolt, which ultimately defeated it. Next, Bugsy used his final Pokémon, Bugsy's Scyther, which proved to be too much for Ash's Pikachu. In the last round, Bugsy's Scyther went up against Ash's Cyndaquil. Ash's Cyndaquil was able to overcome Bugsy's Scyther's superior strength and hit it with an aerial Flamethrower, giving victory in the Azalea Town Gym Battle to Ash Ketchum. Bugsy congratulated Ash Ketchum on his victory and rewarded him the Hive Badge.