Simple DS Series Vol. 2: The Billiard is a budget-priced pool simulator for Nintendo DS, released only in Japan. The game features 9-Ball, 8-Ball, Rotation, and the complete basic rule sets. There are six different locations, a challenge mode, customizable rule settings, free mode (practice), and four-player support via one cartridge.

Via the touch pen, players competing against each other can also write messages to either distract or encourage the others. Developed by Agenda for D3 Publisher.