Complex sentence: She suddenly emerges during the Zoo Crew's battle with Frogzilla, who has already eaten Pig Iron; she rescues "The Porcine Powerhouse", then defeats Frogzilla by returning him to his original form of J. Fennimore Frog.
Split into simpler sentences: She suddenly emerges during the Zoo Crew's battle with Frogzilla, who has already eaten Pig Iron. She rescues "The Porcine Powerhouse", then defeats Frogzilla by returning him to his original form of J. Fennimore Frog.