The 'Special Guest' fanart trend stems from the indie hit Pizza Tower, known for its frenetic, Wario Land-inspired animation and distinct title cards. These cards introduce levels or bosses with hyper-expressive, scratchy, and chaotic artwork. Fans began drawing various characters—ranging from other video game icons to original creations—in this unmistakable 'McPig' art style, complete with the 'Special Guest' heading. The meme celebrates the game's unique aesthetic, often focusing on high-energy poses and distorted facial expressions that mirror the frantic nature of the protagonist, Peppino Spaghetti.