In late 2014, publisher Read-Only Memory released Mega Drive/Genesis: Collected Works, a history book covering the hardware, games and legacy of Sega’s 16-Bit system. Featuring console diagrams and translated design documents, it serves as part art book, part history lesson and part interview collection. And you can read one of those interviews below. Read-Only Memory has provided Polygon with an excerpt — an interview with product designer Masami Ishikawa on how the hardware came about.