Complex sentence: RAW THRILLS's first independent coin-op game was', a light-gun shooter game which was later upgraded to' (also known as Target: Force) featuring bonus levels, end-of-round awards, and other performance enhancements.
Split into simpler sentences: RAW THRILLS's first coin-op game was', a light-gun shooter game. This game was upgraded to' which featured bonus levels, end-of-round awards, and other performance enhancements.