Editing F-Zero X (section)

=== ''Expansion Kit'' ===
[[File:64DD-Attached.jpg|thumb|upright=1|The Nintendo 64 with [[64DD]] attached]]

The [[64DD]] is a peripheral for the Nintendo 64, released only in Japan, {{citation needed span|date=March 2022|and designed in part to provision cartridge games with expansions on inexpensive {{nowrap|64 megabyte}} floppy disks.}} The ''F-Zero X Expansion Kit'' is the 64DD's first expansion disk, released on April 21, 2000, in Japan.<ref name="Import review"/> It contains 12 new tracks, a machine creator, a course editor, and new [[stereophonic sound|stereophonic]] soundtracks.<ref name="history"/> In addition to these 2 new cups, players can create a custom cup. The disk can save up to a 100 tracks and up to 3 ghost data per course. IGN singled out the course editor as the ''Expansion Kit''{{'}}s strongest feature because the [[video game design|design]]ers used a similar tool [[in-house]] for the original circuits.<ref name="Import review"/> The machine creator's variety of options on pre-existing parts, can be used to balance the creations' settings and performance abilities, and name the machine. The course editor allows the player to design racing circuits with detailed tracks. Using a cursor, the player can determine the basic layout, and draw curves and hills. The player can add half pipes, cylinders, and numerous road surfaces, such as slip zones. The player can test the creation at any time and run practice laps.<ref name="Import review"/>

The ''Expansion Kit'' disk requires the cartridge,<ref name="history"/> which was programmed with "64DD hooks" to detect the 64DD and expansion disk.<ref name="64DD failure"/> This provisions the possibility of many disk-based [[expansion pack]]s such as track editors or course updates,<ref name="IGN review"/> but no more were made, and this one was not utilized outside Japan due to the 64DD's commercial failure.<ref name="Import review"/><ref name="64DD failure"/>