Complex sentence: While the other Kongs show off when highlighted, Chunky becomes terrified (and he even tries to make you choose Tiny instead!), and when you move the spotlight away from him, he sighs with relief, unlike the other Kongs who become frustrated.
Split into simpler sentences: While the other Kongs show off when highlighted, Chunky becomes terrified. When you move the spotlight away from him, he sighs with relief, unlike the other Kongs who become frustrated.