Mr Challenger - Texas Instruments

Mr Challenger was the first electronic game that I had when I was a kid. I found it in my storage room and discovered that it still works after connecting a 9 volt battery. I go back and play the three games on it, which are Crazy Letters, Letter Guesser, and Word Challenge. ... https://www.youtube.com/watch?v=zWUvnbp5Fk4