Run KG.

This is a fairly underwhelming one-on-one fighter, but the only one with a 16-color patch I could get to work for the PCjr. 

There is one important quirk, however. The game only seems to reliably work with one player using the keyboard. The second player controls are assigned to the numpad, which is absent on a jr keyboard, unless you have an adaptor allowing a full keyboard on the system. 

The original patching instructions say joysticks work in this version, you just have to make sure to unplug the second player joystick for a one player game. This did not work for me, however. The closest I got was, on a few occasions with both joysticks plugged in, the second player would be joystick controlled while the first player would be stuck on keyboard. Usually this did not happen, however. Let me know if your results vary.