Dreamcast features include 128-bit performance from a reduced instruction set computing (RISC) central processor, an independent 3D graphics engine and a dedicated 3D sound chip.Dreamcast uses a Visual Memory System (VMS) with a built-in LCD screen. Gamers can choose plays in sports games or plan offensive moves in RPG games without their challengers clueing in. You can also save special characters, moves or teams to the VMS, and swap info with your fellow Dreamcast owners by connecting your VMS card to theirs. Minimize