Tin bent, a crackling sound known as the "tin cry" can be heard from the twinning of the crystals. Tin melts at low temperatures of about , the lowest in group 14. The melting point is further lowered to for 11 nm particles. β-tin (the metallic form, or white tin, BCT structure), which is stable at and above room temperature, is malleable. In contrast, α-tin (nonmetallic form, or gray tin), which is stable below , is brittle. α-tin has a diamond cubic crystal structure, similar to diamond, silicon or germanium. α-tin has no metallic properties at all because its atoms form
Puyo Puyo! 15th Anniversary with your friends using the Friend Code system or against random opponents. When playing random games, three-player mode and the original Puyo Puyo rules are not available, and you can earn (or lose!) points if playing a two-player game. Puyo Puyo! 15th Anniversary for the DS had several issues. In the original release of Puyo Puyo! 15th Anniversary, a bug existed where data would could not be saved more than 255 times. A new version, nicknamed 1.1, was released to solve the problem on January 20, 2007. Information on how to find out the game version and instructions on how