ナンバーリンク64大相撲2 (Number Link 64 Oozumou 2) is a Japan-exclusive Nintendo 64 game released in 2000. It is a puzzle game based on the traditional Japanese sport of Sumo. The game features a 3D sumo wrestling ring and realistic sumo wrestlers. The player takes control of a sumo wrestler and must battle against opponents in a series of matches. The objective is to link the same colored numbers on the board and create chains of numbers. The longer the chain, the more points the player earns. The game also includes a single-player story mode and several mini-games. The graphics and sound are quite good, and the controls are simple and intuitive. Number Link 64 Oozumou 2 is an enjoyable and challenging puzzle game that will keep players entertained for hours.