Original Game's Module

Three to six wires, of various colours. Wires are freely accessible, and run horizontally between two columns of connectors. One corect wire must be cut to disarm the module.

Disarming rules depend on a serial number sticker elsewhere on the briefcase.

Implementing as in Original Game

Could be implemented identically, though I'd settle for pulling the wires out instead of cutting them.

Effort and Cost

Hardware could be as simple as two rows of breadboard headers and a microcontroller. Costs a few pennies.

Software would be quite simple. Interrupt on signal edge during the game, check that the correct wire was removed, signal success. Signal failure if the wrong wire is removed, a wire is removed after the success state, or a wire is connected. Some logic to debounce signals. For the installation and setup phase, monitor connectivity and report this back to some GUI.

Player Experience

Identical to the original game during the play phase.

During the installation and setup phase, the software helps verify that the correct connections have been made. The only manual verification is making sure the correct colours of wire are used.

Additional software and hardware could be added to indicate which connection needs to be made next -- extra LEDs that light up next to the correct sockets. Minimal extra cost and effort.

Verdict

Implement as original module, with minor additions to aid in setup.