
The KOC, pictured above, is much cheaper than the ASC, but is smaller than the ASC. Konami manufactures two forms of home controllers, which are known as Konami Official Controllers (KOC) and Arcade Style Controllers (ASC). The CS games can be played with a DualShock controller or with a special controller from Konami that recreates the arcade experience. The home versions are known as CS (consumer software or con sole) styles, while the arcade versions are known as AC (arcade cabinet or ar cade) styles. Konami also released home versions of IIDX for the PlayStation 2 console in Japan. As of Tricoro, required an internet connection to startup instead. However, new songs from e-amusement enabled styles can still be accessed on console versions (which can be imported from Japan). e-amusement is not available outside of the primary markets for IIDX (Japan and Asia, with the exception of select locations in the United States), which has left imported machines outside of Asia without full access to hidden songs and extra stages due to the increasing functionality and integration of e-amusement in more recent styles. 9th Style did not require an internet connection to use a subset of the e-amusement functionality, but 10th and on required an internet connection to function, which must be provided by a subscription from Konami.


From Distorted onwards the newer type Contactless smartcard Konami e-amusement Pass system has been used. From 9th Style to Happy Sky (12th), this was by way of a magnetic card and reader. Since 9th Style, the game has featured integration with Konami's e-amusement platform, which uses a card inserted at the beginning of the game to save stats, scores, allow customization, and track scores in comparison to previous plays and against others over the internet.
