Piatnitzkysaurus was summoned by Sheer's Yangchuanosaurus in the Ancient Roman Colosseum to attack Chomp. He breath a purple mist, but Chomp dodged it. Chomp then knocked Piatnitzkysaurus away and defeated him with Thunder Bazooka. In Bad Deal, a group of Piatnitzkysaurus were running from the forest fire that Gigas started with Magma Blaster.