Complex sentence: The core gameplay remained relatively similar to "Samurai Shodown V", but had all new graphics, including portraits done by artist Satoshi Ito, which convey a dark atmosphere similar to that of "Samurai Shodown III".
Split into simpler sentences: The core gameplay remained relatively similar to "Samurai Shodown V", but had all new graphics. Including portraits done by artist Satoshi Ito, which convey a dark atmosphere similar to that of "Samurai Shodown III".