NES Open Tournament Golf, known in Japan as Mario Open Golf[a], is a 1991 sports game developed and published by Nintendo for the Nintendo Entertainment System. NES Open Tournament Golf is the second Nintendo published golf-based video game released for the NES, the first game being Golf. In addition to the Famicom version of Golf, there were two other Nintendo published golf-based video games released in Japan. These games were released in disk format on the Family Computer Disk System in 1987. These two games were Family Computer Golf: Japan Course and Family Computer Golf: U.S. Course.
Like most Mario games released around the time, the first player played as Mario, and the second player played as Luigi. At certain points during gameplay, the Mario Bros. are offered advice by their caddies, Princess Toadstool (Peach) and Princess Daisy. Another non-playable character was Mario's old nemesis Donkey Kong, who now works as an accountant securing the prize money for Mario and Luigi. NES Open Tournament Golf is often thought to be nearly identical to the Famicom version Mario Open Golf based on the fact that they both feature identical graphics and gameplay. However, there are many differences between the two games. For starters, Mario Open Golf featured five playable courses whereas NES Open Tournament Golf only featured three. The background music between both games also differed, with the exception of a few tracks that were used in both games.
The Famicom version, Mario Open Golf is significantly more difficult than the NES version. Most of the holes seen in Mario Open Golf are not found in NES Open Tournament Golf, though there are a few holes that exist in both versions without any modifications. If someone plays Mario Open Golf they will notice a handful of holes that look nearly identical to the holes in NES Open Tournament Golf, but with more obstacles. It is likely that some of these obstacles were removed from the western release of the game to make it less difficult.
Gameplay NES Open Tournament Golf featured three different courses. Those courses were the US Course, Japan Course, and the UK Course. Although the Japan Course and UK Course are also playable courses in Mario Open Golf they do not contain the same holes. There are some holes in each course that are identical or nearly identical to holes found in NES Open Tournament Golf. For example, hole number one in the Australia Course is hole number nine in the US Course. Mario Open Golf featured five different courses. Those courses were the Japan Course, the Australia Course, the France Course, the Hawaii Course, and the UK Course. In addition to those five courses an Extra Course is also available. The Extra Course contains a mix of holes from the other five courses.