Complex sentence: After Dr. Eggman's defeat, she and the Chao spend some time with Sonic and his friends, but she later returns back to her time, telling Cheese that if he calls her name, she will return.
Split into simpler sentences: After Dr. Eggman's defeat, she and the Chao spend some time with Sonic and his friends. However, she later returns back to her time, telling Cheese that if he calls her name, she will return.