NES 2.0 Mapper 357

NES 2.0 Mapper 357 is used for a 4-in-1 multicart (cartridge ID 4602) from Bit Corp. It's basically a combination of the Mr. Mary 2 variant of INES Mapper 043 and UNROM.

Unlike most multicarts, there is no menu; instead, the desired game is selected via two DIP Switches on the cartridge itself. The DIP switches directly select the outer 128 KiB PRG-ROM bank, game-specific nametable mirroring and mapper mode --- outer bank 0 selects INES Mapper 043 mode, all others select UNROM mode. All four games use 8 KiB of unbanked CHR-RAM. Mirroring is Vertical for banks 0-2 and Horizontal for bank 3.

See also

PCB image analysis