' Shooter' boards will ONLY play Beast Busters: Second Nightmare. ' Racing' boards will ONLY play the 2 racing games. ' Fighting' boards will ONLY play the fighting games, there are 2 revisions of this board, the second revision had a standard neogeo harness instead of a custom one. There are 4 known types of Neogeo Hyper64 motherboard available Main Functions: Scaling, revolution, morphing horizontal/vertical screen partitioning and line scrolling Scrolling Branch: Up to 4 game planes, 64 MB Character Memory Main Functions: Scaling, montage, chain, mosaic, mesh, action, up/down, right/left reverse Sound chip: 32-channel PCM wavetable audio, with maximum sampling frequency of 44.1 kHz (CD-quality) and 32 MB of wavetable RAMģD Branch: 96 MB Vertex Memory, 16 MB maximum Texture MemoryĢD Sprite Branch: 60 frames per second animation, 128 MB Character Memory ĬPU : NEC VR4300 (64-bit MIPS III architecture based) 100 MHz with 4 MB RAM and 64 MB Program MemoryĪudio I/O CPU: Custom V53 16 MHz 16-bit microcontroller (NEC V33 based)Ĭommunications I/O CPU: Custom KL5C80A12CFP 12.5 MHz 8-bit microcontroller (Z80 compatible)