TEXAS INSTRUMENTS TI 99/4A Tunnels Of Doom (1981) cartridge only

"Tunnels of Doom" for the TI 99/4A computer

FORMAT: cartridge
HOUSING: black
LABEL: black
YEAR: 1981

Please note: this cartridge does nothing on its own!  It requires an adventure game file to be loaded from disk or tape!

Tested and working.

Shipping weight: 5 ounces.