"Animal Crossing," which debuted on Nov. 20, sold 303,204 copies in its first four days in shops while "Chrono Trigger" for the DS sold 276,049 copies, said Enterbrain. The third placed title was "Mobile Suit Gundam, Gundam vs Gundam" for the PlayStation Portable, which sold 240,594 copies in its first four days on sale.

Enterbrain publishes local gaming magazine Famitsu and its sales estimates, which are based on point-of-sales system data from 3,500 retailers of computer game software and hardware, are generally regarded in the gaming industry as reliable.