Complex sentence: Numerous theme parks fought to be the first to feature the novel roller coaster; in the end, King's Dominion obtained the rights, and after slight modifications to the prototype, they opened Hypersonic XLC.
Split into simpler sentences: Numerous theme parks fought to be the first to feature the novel roller coaster. In the end, King's Dominion obtained the rights, and after slight modifications to the prototype, they opened Hypersonic XLC.