PolyGame Master

The PolyGame Master (PGM) is an arcade system board released in 1997 by the Taiwan company IGS. The PGM was developed in order to compete with the likes of SNK's Neo Geo MVS system in Taiwan. It was succeeded by PGM2 in 2007, and PGM3 in 2012.

DoDonPachi II, released by CAVE, came on a single dedicated board and utilizes a customized BIOS programmed by CAVE. Ketsui and Espgaluda, again released by CAVE, came on a single dedicated board, but did not have a separate BIOS, as these functions are integrated into the main program.

Description
The IGS PolyGame Master is an arcade system released by IGS in 1997. It features many video games, the most notable of which are the titles from the Knights of Valour series.

In April 2023, IGS released the IGS Classic Arcade Collection on the Nintendo Switch, a compilation of eight games originally created for the IGS PolyGame Master.

System specifications

 * Main processor: Motorola 68000, running at 20 MHz
 * Sound processor: Zilog Z80, running at 8.468 MHz
 * Sound chip: ICS2115; 32 channel PCM
 * Protection chip: ARM7 ASIC with internal code, running at 20 MHz
 * Hardware features: 1 scrolling 8×8 tiles 4bpp scrolling tilemap, 32×32 tiles 5bpp scrolling tilemap with linescroll, arbitrary size 5bpp sprites, zoom and shrink capabilities

Description
The IGS PolyGame Master 2 is an arcade system released by IGS in 2007, succeeding the IGS PolyGame Master. It features few video games, the most notable of which being the game Knights of Valour 3 from the Knights of Valour series.

System specifications

 * Main processor: IGS036 (differs per game, internal code)
 * Graphic processor: IGS037
 * Sound chip: Yamaha YMZ774-S
 * Protection chip: R5F21256SN (extra MCU for protection and IC Card communication)
 * Media: ROM (custom program ROM module (KOV3 only))

System specifications

 * Main processor: ARM1176
 * Chipset: Xing Xing SOC38
 * RAM: NANYA 2 GB DDR3
 * Media: SD Card (capacity max to 8 GB)
 * Screen resolution: 16/9 (1280x720) or 4/3 (800x600)
 * Player input: JAMMA or JVS