UFO Challenger (19??, LCD, Watch batteries, Model# ??)
I have this, but that doesn't help much... :) Same body design as Takara's Wataru 2, so maybe this game was made by Takara. Other games I've seen with the same body style: UFO Challenger, UFO Star, Takara's Wataru 2 and Chibi Maruko game probably others...
Do I have this? Yes.