INES Mapper 149
From Nesdev wiki
iNES Mapper 149 is just like mapper 145, but moves the register to overlap with PRG ROM and so has bus conflicts. It's a singleton, PCB labeled SA-0036, and used by the Sachen game Taiwan Mahjong 16.
Mask: $8000 Bus conflicts: $8000: [C... ....] - select 8 KiB CHR bank.