Sydney 2000 (USA) (Proto) is a Nintendo 64 game released in Japan as Nintama Rantarou 64: Sydney 2000 Koushien. It is a sports game based on the 2000 Olympic Games in Sydney, Australia. The game features a variety of Olympic events, including track and field, swimming, and archery. Players can compete against each other in head-to-head competition, or compete against computer opponents in single-player mode. The game also features a training mode, where players can practice their skills before competing in the Olympics. The game's graphics are colorful and vibrant, and the controls are easy to use. Sydney 2000 (USA) (Proto) is a fun and exciting game that allows players to experience the thrill of the Olympic Games.