Firefly?

After a late dinner, I stepped out the back door to smoke a cigarette, like normal.  As usual, I looked up to what aircraft was flying over and from where.  A light caught my eye to the northwest.  At first, I thought it was a helicopter, until the lights started to flash and the flight pattern was extremely erratic.  So then, I thought it might be a firefly, until I realized that fireflies don't changed colors when it began to alternate between white, red, and green.

I've seen, both during the day and night, many different types of aircraft, living less 10 miles than a local airport.  Most of the low level flights are done by the Hernando County Sheriff's Dept. and the U. S. Coast Guard helicopters.  I also know that all crafts whether by land, sea or air are required to have running lights at night, especially since 9/11.

Prior to 9/11 and still to this day, an aircraft's running lights serve many purposes, one of which is purely for safety reasons.  These lights are, in a way, like radar beacons which emit a tone, of sorts, to aircraft-control stations that allows them to direct air-traffic in the safest way possible and lowers the chances of mid-air collisions.

Getting back to what I saw earlier this evening.  All of the helos and planes that I've studied in the past have never had the capability of coming to a direct halt and change trajectory like a yo-yo.  I had read about something like a boomerang UFO recently.  However, whether thrown or dropped from a high altitude like a 3-story window, a boomerang has a preplanned flight path based on the angle of the material it's made of and the weight of it.  This would change only by the variation of the air speed and temperature.  The object I saw moved in a way like no other aircrfaft I've studied or observed before.  Moving like it did, with most aircrafts, would run out of fuel within 20 minutes, but it darted back and forth for about 30 minutes and then flew off towards the north until I couldn't see it past the trees at the back of my property.  I live on 10-acres off of County Line Road on the Hernando side.

Does any of make sense of to anyone else?