I can't tell you how surprised I was to actually find another one of these on the internet. I've done searches before, but today led me to this site and a familiar toy.
I'll try to keep the background of this little guy as short as possible, but I have done some digging to learn the history of it. It was made in Milbank, SD around 1974-76 (from what I could learned) by Or-Land Industries Inc. It sounds like it started as a few guys with a Rupp Ruppster looking at it and thinking we could build something like this. From there the Little Bugger was born. I don't know how long that name actually lasted, but it became the Little Buster (same decal of a bug character). They were sold with a 292 JLO Rockwell snowmobile engine (Rupp was 230) or a Tecumseh 4-cycle engine (sorry I've never ran across one to know horsepower) and had a forward/reverse gearbox.
BARTWAYMIRE what you have appears to be a mostly complete little buster. I know they were sold with (or maybe an option I don't really know) a front bumper, engine cover, and hood with windshield.