Description

The TwinFamicom Expansion Port Switcher Upgrade will enable you to switch the role of the expansion controllers between internal and external on a TwinFamicom.  The expansion ports on the Japanese Famicom consoles have a problem – some western games are incompatible with the controllers connected to this port, due to the fact that this expansion port did not exist on the NES, and therefore was ignored by some developers.

Significant Titles Affected:

• Arkanoid II
• Battletoads
• Dragon’s Lair
• Paperboy
• Pinball
• RoboCop 2/3
• Star Force
• Super Mario Bros. USA
• Snake Rattle’n’Roll
• Terminator 1/2
• Tetris (Tengen)
• Zelda II – The Adventure of Link

This upgrade requires experience in console repair, both soldering and desoldering, and might not be friendly for everybody. Please keep this in your mind before attempting.

Includes upgrade board and header pins.  Two small wires (not included) are also required to complete the upgrade.

This upgrade is the design of the AMAZING Jeff Chen (github.com/jeffqchen).