Complex sentence: The game begins with Homer having a candy-induced fantasy about a world of chocolate where he tries to catch and eat a white chocolate rabbit; upon waking up he is upset to find that it was all a dream.
Split into simpler sentences: The game Begins with Homer having a candy-induced fantasy about a world of chocolate where he tries to catch and eat a white chocolate rabbit. But upon waking up he is angered that it was all a dream.