Simplify the following text for a Grade 10 native English-speaking person.
Original: In television commercials , the clown inhabits a fantasy world called McDonaldland , and has adventures with his friends Mayor McCheese , the Hamburglar , Grimace , Birdie the Early Bird , and The Fry Kids .
Simplified: He lives in McDonaldland , with lots of others including Grimace , the Hamburgler , Birdy the Early Bird , Mayor McCheese , and the Fry Kids .