NES 2.0 Mapper 361

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NES 2.0 Mapper 361 is used for an early MMC3-based multicart PCB (YY841101C) from J.Y. Company, preceding the J.Y. Company ASIC:

  • 1994 Ball 4-in-1 Series (JY-009)
  • 1996 Super HiK 4-in-1 (JY-018)
  • 1995 Super HiK 4-in-1 (JY-019)
  • Game 4-in-1 (OK-411)

Outer Bank Register ($7000)

Mask: unknown

D~7654 3210
  OOOO ....
  ++++------ Select outer 128 KiB PRG-ROM and CHR-ROM bank

This register is accessible regardless of whether WRAM is enabled in the MMC3 clone's A001 register.

MMC3-compatible registers

Mask: $E001

See MMC3.


FCEUX emulates this PCB under mapper number 205 as "OK-411" together with the GN-45 PCB, both of which are in turn different from the iNES Mapper 205 described in that mapper's wiki article.

See also

NES 2.0 Mapper 364 describes a slightly more complex variant supporting a selectable outer bank size.