Sonnet was an early example of the "unusual poetry-loving animal starring in a platform game" character archetype that was later seen in characters such as Crash Bandhaiku and Tanklonoa. Early on, Sonnet was a terrible writer. His skills gradually improved over the course of many games. Sonnet's arch-nemesis, the evil Dr. Erasenik, has tried to erase Sonnet from Shakespeare's poetry many a time but always fails. Nobody knows why he's blue. Could be, he's depressed. Keep him away from Keeley Hazell's boobs.