I set out to design a multicart mapper capable of simulating several discrete boards, essentially a runtime reconfigurable ReproPak with a game select register on a CPLD. It can simulate NROM (#0), CNROM (#3), AOROM (#7), UNROM (#2 or #180), BNROM, or any combination of features thereof (e.g. UNROM with 1-screen mirroring, or even UNROM with four 8K CHR RAM banks). INL contributed draft Verilog code, and he told me implementations for PowerPak and an emulator are coming.
The following games/applications are included:
02. Forehead Block Guy
03. LAN Master
04. Lawn Mower
07. Concentration Room
09. I Wanna Flip The Sky!
11. Munchie Attack
13. NES Virus Cleaner
14. Pogo Cats
16. Zoomin' Secretary
17. Music Toy: Axe (Application)
18. Russian Roulette (Application)
19. TapeDump (Application)
20. Zapper Calibration (Application)
This uses a custom mapper and as a result this ROM may not function on your emulator/nes flash kit of choice.