We’ve preserved the FamicomBox version of 1943 Capcom! Something interesting to note is that this version appears to have been released with the wrong nametable layout. The game should be using horizontal mirroring, however it has been observed with vertical mirroring and even with the mirroring control left floating, which functions on the FamicomBox as single screen mirroring. Nametable layout is controlled by the cartridge via an address line. On simpler mappers, this is just a solder pad on the PCB. For 1943, we’ve seen the wrong solder pad connected, and even neither one connected. Both result in the same glitchy behavior on real FamicomBox hardware. Thanks very much to Fiskbit for taking a look into this!


This cartridge contains a few differences within the internal Nintendo header, those changes are as follows:

  • It changes the title encoding from JIS X 0201 to ASCII (but JIS X 0201 is mostly compatible with ASCII and would work fine for this title).
  • It changes the title length from 5 chars (which was wrong) to 16, because the 4-char title is left-aligned.
  • It changes the header validation byte, which is a checksum that includes the previous 2 values.


Screenshot Screenshot Screenshot

ROM Information

----| File Data |--------------------------------------------------
System:             Nintendo - Nintendo Entertainment System     
File:               1943 (Japan) (FamicomBox).nes
BitSize:            1 Mbit
Size (Bytes):       131088
CRC32:              E081D937
MD5:                CC486366F43F0AB715E1E0EF23F63DE0
SHA1:               3DE82346B1E40C476785A7F20D23B6CC30D12664
SHA256:             9650A14012F9BF923C82091E076553435F1D5B0BF17739985004CC2ADD83D394
----| iNES Header Data |-------------------------------------------
Num ROM Banks:      0x08 (128 KBytes)
Num VROM Banks:     0x00 (0 KBytes)
Mirroring:          0 (Horizontal)
Save RAM:           0 (No)
Trainer:            0 (No)
4-Screen VRAM:      0 (No)
VS-System Cartridge:0 (No)
ROM Mapper:         2 (CNROM switch)
Num RAM Banks:      0x20 (262144 KBytes)
Display:            0 (NTSC)
----| NES Header Data |--------------------------------------------
Title:              1943????????????
PRG-ROM Checksum:   0x9DE3 (Ok)
CHR-VROM Checksum:  0x0000 (Ok)
PRG Size:           0x3 (128 KBytes)
CHR Size:           0x8 (None; VRAM Used)
Mirroring:          0x8 (Vertical)
Board Type:         0x2
Unknown 1:          0x020F082D
Maker Code:         0x08 (Capcom)
Unknown 2:          0x2D
Vectors:            0x26C249C135C2
----| Headerless Data |--------------------------------------------
Size (Bytes):       131072
CRC32:              B4B16C39
MD5:                83C05FF2C355C6CCDE2E6C9183570E9C
SHA1:               13C006381F6D293328F2A445E1A467EB87CDAB39
SHA256:             7A39D3E0326A4B6AC8AA47D1C3799B14D35A1EE49A3C2A9E6A9BF902E1DC1A4F

Board / Cartridge Images

Cart Front
PCB Front

Special Thanks

Massive thanks to Lina for sending this in for release!


Download 1943 (Japan) (FamicomBox)