Invader Zim Episode 22 - Bolognius Maximus Episode Title:Bolognius Maximus.Episode Description:Dib throws bologna sausage during the lunch break at school, which dissolves Zim's skin. As revenge, Zim places a thumbtack on Dib's chair, which he then sits on. The next day Dib discovers that he smells like meat and is ridiculed by the other children, and at that point Zim informs Dib that his vengeance is complete. Dib discovers that Zim has infected him with a virus that is altering his DNA and turning him into bologna. As revenge he infects Zim with the same virus and as they start turning into sausages (and coming close to being devoured by ravenous feral dogs), they both work together to try and find a cure—only to fail and hide in a deserted house. However, it should be noted that in the following episode, Zim and Dib are right back to their normal selves, suggesting that either the virus is temporary, or the show uses a floating timeline.