Simple DS Series Vol. 2: Billiards is a Nintendo DS game released by D3 Publisher on June 30, 2005. As the second entry in the "Simple DS" series, it focuses on American pool and offers six rule sets including 9-ball and 8-ball. It features two modes: Challenge Mode, where players progress by winning matches, and Free Mode, which supports up to four players simultaneously. Players can adjust the table friction coefficient to affect ball slide distance. Using the DS touchscreen, players can draw cue ball path strategies on the bottom screen to improve performance. With 1-4 player multiplayer support, it’s perfect for enjoying billiards with friends.