NES 2.0 Mapper 262 is used for Street Heroes/侍魂 (Shìhún) by Sachen. It uses an MMC3 clone with both CHR-ROM and 8 KiB of CHR-RAM, as well 4 KiB of additional VRAM for four-screen mirroring. Its UNIF board name is UNL-SHERO.
Mask: probably $E001
$8000, $8001, $A000, $A001, $C000, $C001, $E000, $E001: As normal MMC3.
Mask: unknown, but probably $C100
$4100 (read): Read jumper setting
Bit 7654 3210
---------
J... ....
+--------- Jumper value
0: Game title is Street Heroes
1: Game title is 侍魂 (Shìhún) (Samurai Spirits)
$4100 (write): High CHR-ROM bits and CHR-ROM/-RAM selection
Bit 7654 3210
---------
.M.. 8421
| |||+- Select 256 KiB CHR-ROM bank at PPU $1000-$17FF
| ||+-- Select 256 KiB CHR-ROM bank at PPU $1800-$1FFF
| |+--- Select 256 KiB CHR-ROM bank at PPU $0800-$0FFF
| +---- Select 256 KiB CHR-ROM bank at PPU $0000-$07FF
+-------- Select CHR-ROM/-RAM
0: CHR-ROM
1: CHR-RAM
Categories: MMC3 with CHR ROM and CHR RAM, MMC3-like mappers