Complex sentence: Ray falls to the floor and starts crawling towards her begging for help in a wretched voice and then his entire face becomes like that of a mosquito and his entire body undergoes a transformation that turns him into a mutant cross between a man and a giant mosquito.
Split into simpler sentences: Ray falls to the floor and starts crawling towards her begging for help in a wretched voice. His entire face becomes like that of a mosquito and his entire body undergoes a transformation that turns him into a mutant cross between a man and a giant mosquito.