The Sega NAOMI (New Arcade Operation Machine Idea) board was developed for Sega as an Arcade platform as well as base technology for the Sega Dreamcast. Notable games that used the NAOMI board include: Crazy Taxi, Dead or Alive 2, Ferrari 355 Challenge, Guilty Gear XX, House of the Dead 2, Ikaruga, Super Monkey Ball, Virtua Fighter 3, and Virtua Tennis. Around fifty games were written for Naomi boards.