Complex sentence: After the events of "Densetsu no Stafy 4", while the protagonist, named Starfy, was sleeping in bed, a rabbit wearing an astronaut suit, named Bunston, fell from the sky through the roof of Pufftop Palace, bouncing on and waking Starfy.
Split into simpler sentences: After the events of "Densetsu no Stafy 4", the game's protagonist, Starfy, was sleeping in bed. Suddenly, a rabbit wearing an astronaut suit, named Bunston, fell from the sky through the roof of Pufftop Palace, landing on and waking Starfy.