• English / United States: Pumpka's Pumpkaboo
• Japanese / Japan: パンプのバケッチャ
• Japanese (Romanized) / Japan: Pump no Bakeccha
• Japanese (TL) / Japan: Pump's Bakeccha

Pumpka's Pumpkaboo is the prince of a castle in the Kalos region. The prince had fallen in love at first sight with Jessie's Pumpkaboo and Pumpka ordered his butler to invite them to the castle to be introduced and to have a meal. Upon meeting them, Pumpka noticed that Jessie's Pumpkaboo was a truly excellent Bakeccha and that he'd never seen such a big one before. Pumpka's Pumpkaboo though was a lot smaller than Jessie's Pumpkaboo.

Pumpka then asked Jessie to trade her Bakeccha so that the prince could wed her. Despite initial hesitation, Jessie agreed and traded her Bakeccha. During the trade process, Jessie's Pumpkaboo evolved into Jessie's Gourgeist. Pumpka then realized that Pumpjin is a trade evolution and the prince liked the way Bakeccha looked better and no longer wished to get married.