Twin Cobra by Toaplan licensed to Romstar, 1987

This is one of the early classic vertical shoot-em-up arcade games. Player(s) fly helicopters firing at air and ground targets. Collect power-ups (green, blue, yellow, or red) for better fire power. Fight a 'boss' enemy at the end of each stage. This game is a sequel to the 1 player arcade game Sky Shark. There were many other video games like this in the years to come.