NESticle is a Nintendo Entertainment System emulator, which was written by Icer Addis of Bloodlust Software.[1] Released on April 3, 1997, the widely popular[2] program originally ran under MS-DOS and Windows 95. It was the first freeware NES emulator,[3] and became commonly considered the NES emulator of choice for the 1990s.[4] Initially offering few features and only supporting a handful of games, development proceeded rapidly and to expand usability such that NESticle is today credited with introducing the concept of recordable playthrough for emulation,[5] as well as providing the capacity for users to create their own graphical hacks[6] via an integrated graphics editor.[7] In pioneering this heightened level of access for users, and providing the tools for fans to hack and remix familiar classics, NESticle has been credited by Spin as representing a milestone toward the development of video game music as a genre.[8]