Blue and Red lights flying erratically in the air over TantalusI'm a Security Officer, and have been working Security for 6 years now. It happened while I was on duty and preparing to do my last patrol of the shift before ending.At approximately 0025hrs(12:25am), I observed a blue and red light flying over the Ko'olau Mountains near Tantalus/roundtop drive. My first thought was that it was a plane coming over the mountain, but I quickly ruled that out when it changed course, moving slightly to my left. It was much to sudden to be a plane, so the next thing I thought was a helicopter, which was quickly ruled out soon after when I observed the lights make a sudden change and begun to fly in a zig zagging kind of path in the sky, and not to mention that there was no sound of helicopter blades chopping through the air at all.Upon that sudden course of action it conducted I was most certainly interested now. I continued to monitor the lights and even repositioned myself on the property to try to get a better view and continue to observe it's strange and erratic movements. It then proceeded to appear to descend towards the ground where I could no longer observe as my vision was obstructed by trees and structures. It's movements were like someone pointing a laser pointer and moving it all over the place except much more controlled and not as fast, but faster and able to do things that a plane or helicopter could do.Shortly there after it's descent out of my view, my Supervisor shows up at my site to check up on me as usual during my shift, and almost soon after he arrived the thing shot back into the air and proceeded to fly erratically as before, I quickly pointed it out and even he was baffled by it and we both continued to watch it until it descended again to the ground where we couldn't see. My Supervisor is a former U.S. Marine and he said he had never seen any aircraft do things like that, not even a remote controlled device.I know what I was thinking when we watched it, but I waited to hear him say it first. "I think we just observed an Unidentified Flying Object". We ruled out cars that might have been on the road on the mountain as we both saw the object fly high enough that we could see there was space between the outline of the mountain and the lights, so it was definitely in the air.We saw it shoot straight up suddenly and we thought it was gonna zip away, but it hovered for about 5 seconds before shooting back down towards the ground where we couldn't see it. And that was the last we saw it. Immediately after my shift at 0100hrs I got in my car and drove up to the Military Cemetary at Punch bowl to try to get a better view. Once up there I saw a group of 4 young people hanging out overlooking the area where my workplace is and so I asked them if they saw it, if they saw the lights. One of them, a girl, admitted to seeing a red light shoot up from the corner of her eye not long before I arrived. And that was the last time I saw it, I waited for about 15 minutes more to see if it would return, but it didn't.