Source:
RetroPC
During their MSX days,
Konami often offered special game features when combining two different Konami Cartridges in both cartridge ports. With the
Nintendo DS having both a
Nintendo DS and a
Gameboy Advance game port,
Konami was bound to pull the same joke again.
Right here, the Japanese retrogaming portal
RetroPC revealed that when the GBA version and the
Nintendo DS version of
Konami's Goemon games are combined, the player gets to play a game of
Space Manbow. As an added bonus to MSX owners, the bottom screen of the Nintendo DS will even show an MSX computer with the
Space Manbow cartridge insterted in slot 1.
Relevant link:
Space Manbow on Nintendo DS by combining Goemon GBA and Goemon DS - Information