General The Range of Courier Services of First Flight | Page 7

To do as such the regularly adorable yellow cronies ingest or are infused with a mutagentic serum , PX-41 created at a unique lab in the Arctic circle .

The subsequent animals are indestructible , purple , insane , exceptionally textured , careless slaughtering machines .

The best way to fix the impacts of the PX-41 serum is with the remedy , properly named the PX-41 antitoxin , develped by Dr . Nefario . Gru ' s young ladies get the opportunity to play saints by shooting some really terrible tasting jam at the purple cronies to change them once more into the senseless yellow ones .