TEXAS INSTRUMENTS TI 99/4A "Alien Addition" cartridge
Condition: used, tested and working. Clean cartridge and label.
Cat. No.: PHM 3115
Includes: cartridge only, no box or manual.
Shipping weight: 5 oz.
Label variation: green label, black cartridge.
Math meets a Space Invaders-style game in this classic "edu-tainment" offering from TI.