The following is a prototype of B-17: Fortress in the Sky, developed by Skyworks Technologies for the Nintendo DS. A quick check reveals many differences and unique files. If you’re familiar with this game and know the exact changes, let us know!


  • Various graphical and font differences.
  • It contains many files that aren’t present within the retail release.


Screenshot Screenshot Screenshot

ROM Information

----| File Data |--------------------------------------------------
System:             Nintendo - Nintendo DS     
File:               B17_FORTRESS_AB7E20_00.nds
BitSize:            64 Mbit
Size (Bytes):       8388608
CRC32:              EA4B5E17
MD5:                C31708E89152A7E0FFE2B39FBECAE4C4
SHA1:               D49EA947B3260D16D5C4E6170A1F0E7B2B1509DF
SHA256:             CB9B6DF65F0A94817ED6D45DAF7626B5A739D0E72BACE432AD85A5DC77CEE949
----| Header Data |------------------------------------------------
Game Title:         B17 FORTRESS
Game Serial:        AB7E (USA)
Maker Code:         20 (Destination Software/KSS)
Unit Code:          0x00
Encryption Seed:    0x00
Device Size:        0x06 (Ok; 64 Mbit; 8388608 Bytes)
Asian Region:       0x00
Reserved 1:         0x000000000000000000
Version:            0x00 (v1.0)
Autostart:          0x00 (No)
ARM9 ROM Offset:    0x00004000
ARM9 Entry Address: 0x02000800
ARM9 RAM Offset:    0x02000000
ARM7 ROM Offset:    0x00070A00
ARM7 Entry Address: 0x02380000
ARM7 RAM Offset:    0x02380000
FNT Offset:         0x00097400
FNT Size:           0x00003D45
FAT Offset:         0x0009B200
FAT Size:           0x00001CE0
ARM9 Overlay Offset:0x00000000
ARM9 Overlay Size:  0x00000000
ARM7 Overlay Offset:0x00000000
ARM7 Overlay Size:  0x00000000
Normal CMD Setting: 0x00416017
Key1 CMD Setting:   0x001808F8
Icon Address:       0x0009D000
Secure CRC16:       0x2795 (Bad; 0x4303; Decrypted)
Secure Timeout:     0x051E
ARM9 Autoload Address:0x02000A74
ARM7 Autoload Address:0x02380158
Secure Disable:     0x0000000000000000
Used Rom Size:      0x007CA980 (8169856 Bytes)
Header Size:        0x00004000 (16384 Bytes)
Logo CRC16:         0xCF56 (Ok)
Header CRC16:       0xEC11 (Bad; 0x0000)
----| Icon/Title Data |--------------------------------------------
Icon Version:       0x0001
Icon CRC16:         0xB383 (Ok)
English Title:
B-17 Fortress in the Sky
Zoo Digital Publishing
----| Encrypted Data |---------------------------------------------
Encrypted Secure:   0x2795 (Ok)
Encrypted CRC32:    041C79F0
Encrypted MD5:      8FA0A6293ECE090E7ECE61606142E073
Encrypted SHA1:     2752F9200DC55C20A9C39930F5D348612AB14016
Encrypted SHA256:   02C3A0A0987F87E5C968A45900113FC2378747310F5AF2F734BCD9671099CBCC

Board / Cartridge Images

Cart Front

Special Thanks

Massive thanks to Erik for sending this in for release!


Download B-17 - Fortress in the Sky (USA) (Prototype)