Atomiswave

The Atomiswave is a custom arcade system board and cabinet from Sammy Corporation. It is based on the hardware of Sega's Dreamcast console and resembles Sega's NAOMI board in using interchangeable game cartridges and a removable module that changes the control scheme, which can offer dual joysticks, dual light guns or a steering wheel. Unlike the NAOMI, it does not add RAM beyond what the Dreamcast has. Its listed specification is a 200 MHz Hitachi SH-4 processor, a PowerVR 2 graphics chip, a Yamaha AICA sound processor with an ARM7 core, 16 MB of system memory and storage on a ROM board. When the aging Neo Geo MVS system was retired, SNK Playmore chose the Atomiswave as its next platform and agreed to develop five games for it, the last being Metal Slug 6. In Japan the board could connect through a special modem to Sammy's AW-Net online service, which closed on 30 November 2006. Sega ended technical support for the system on 31 March 2017, and its library has since received homebrew Dreamcast conversions.