We are heading all the way back to 1974 for this Friday Flyers, thanks as always to the Arcade Flyer Archive.
Challenge was released by the Micro manufacturer in another form, a table top, that was round with a glass panel over the monitor. It is basically a clone of pong or as the genre is entitled Ball and Paddle.
I couldn't find anything on Ramtex's Baseball unfortunately but the monitor graphics pictured in the flyer looks pretty good for 1974!
Formula K was a clone of Atari's Gran Trak 10 with the addition of a lap time, a diode that glowed counting the lap times. I like how the flyer proudly advertises the oil spill on the track.
I believe I've played the Formula K game at a local fair in my youth, just a tent with a few arcade games, and various types of test your strength and love meter games. This is the same tent where I played for the only time the Death Race game...surprised with the media attention on that particular game that the fair didn't have to run for their lives from a mob with pitchforks and torches.