Complex sentence: In the final round, they pull off a close victory cemented by a final decisive scare by Mike in the simulation bedroom, but afterwards, Mike discovers that Sulley cheated by rigging the machine to improve Mike's score.
Split into simpler sentences: In the final round, they pull off a close victory cemented by a final decisive scare by Mike in the simulation bedroom. But afterwards, Mike discovers that Sulley cheated by rigging the machine to improve Mike's score.