Today we’ve preserved a prototype build of Kung-Fu Master by Irem Corp! The build is seemingly late, and any changes are likely localization related as the game was first released in Japan under the title “Spartan X”.


  • The differences within this build are currently unknown. If you happen to know the game well and know the differences between the retail release and this prototype, please let us know!


Screenshot Screenshot Screenshot

ROM Information

----| File Data |--------------------------------------------------
System:             Nintendo - Game Boy           
BitSize:            512 Kbit
Size (Bytes):       65536
CRC32:              E0C33C1A
MD5:                8CBBFDA8754CCACAAE46AC571F46A034
SHA1:               1CE6301D56294B71068514C666AD2157551134E7
SHA256:             D56F6AB3A076B0B5164ACE9B416FE1F7952B9E7B40F709F5755F807D49112A3F
----| Header Data |------------------------------------------------
Entry Point:        0x0150C300
Logo Code:          Ok
Title:              SPARTAN X       
New Licensee Code:  N/A
SGB Support:        0x00 (No)
Cartridge Type:     0x01 (ROM + MBC1)
ROM Size:           0x01 (Ok; 512 Kbit; 65536 Bytes)
RAM Size:           0x00 (None)
Old Licensee Code:  0x49 (IREM)
Version:            0x00 (v1.0)
Header Checksum:    0x0A (Ok)
Global Checksum:    0xC891 (Ok)

Board / Cartridge Images

Cart Front

Special Thanks

Massive thanks to FNeogeo for sending this in for release!


Download Kung-Fu Master (USA) (Prototype)