hardware. Several varieties of custom processors are used within NES cartridges to expand system capabilities; most are difficult to replicate except by scavenging old cartridges. While the original Famicom and its clones can play unlicensed games, the 10NES hardware lock-out mechanism of the original model NES complicates the production of physical cartridges. The 10NES chip can be permanently disabled by performing a minor change to the hardware. The redesigned NES (also known as the New-Style NES or the New Famicom) lacks the 10NES chip. Genesis / Mega Drive The Sega Genesis has no physical lockout mechanism (instead relying on software encoding), making it easier to release software for the system. Pier Solar and the Great Architects, Paprium, and a port of Teenage Queen are examples of games that were released as physical cartridges. Other games include Sacred Line Genesis, Coffee Crisis, and Frog Feast for the Genesis and Mighty Mighty Missile for the Sega CD. The 2018 game Tanglewood was notable in that it was developed using original Sega Genesis development hardware. TurboGrafx-16/PC Engine The TurboGrafx-16/PC Engine has a comparatively small homebrew scene. The first homebrew title was MindRec's Implode in 2002, a few years after the system's last official release (Dead Of The Brain I & II for the PC Engine in 1999). The title was released on CD-ROM. Two years later, MindRec released Meteor Blaster DX on CD-R. Their official word on the change of CD format was that they were unable to be pressed to CD-ROM proper due to the glass mastering software suddenly unable to handle the unorthodox style of CD structure that the system expects. Five years later, Aetherbyte Studios released Insanity, a Berzerk clone, on pressed CD-ROMs, quelling the notion of unpressable CDs. Aetherbyte later went on to prototype and produce a new HuCard design called "AbCARD", which was fully compatible with the console. Aetherbyte celebrated the 30th Anniversary of the PC Engine since its release in 1987. There is one C compiler for the console known as HuC, however it has not been officially updated since 2005. The MagicKit assembler is generally considered the de facto assembler for the console, and comes included with HuC. Additional libraries for HuC/MagicKit include Squirrel, a sound engine developed by Aetherbyte Studios, and the SGX/ACD library, developed by Tomatheous, that gives the developer easy access to the SuperGrafx video hardware as well as the Arcade Card. The