Complex sentence: Sega's Dreamcast was the first console of the generation and had several features to show an advantage from the competition, including Internet gaming as an optional feature through its built-in modem, and a web browser.
Split into simpler sentences: Sega's Dreamcast was the first console of the generation and had several features to show an advantage from the competition. Including Internet gaming as an optional feature through its built-in modem, and a web browser.