The Pump Chimera, also known as Mr. Pump, is a chimera encountered in Mother 3. He is introduced by Dr. Andonuts when the party is looking for something to gain access Doria's Needle, along with Dryer Chimera and the Bucket Brothers. Ironically, he is Dr. Andonuts's least favorite of the three chimeras to choose from, despite being the only helpful one and the correct choice to empty the pool that hides the Needle.