Macross

In 1999, a giant alien spacecraft crash lands on South Ataria island. Humanity proceeds to attempt to rebuild this marvel, but political conflicts centered around the Macross result in a global war. After 10 years, the Unification Wars are finally over, the new Earth United Nations Government is in power, and work on the Macross is complete. On the day of the launching ceremony, its main cannon fires on its own, destroying an alien spacecraft. This fateful day marks the beginning of the war between the humans on the Macross and the Zentradi, a race of humanoid aliens of giant proportions. (Source: AnimEigo)

Megazone 23

Motorcycle enthusiast Shogo mistakenly comes into possession of a government prototype bike. Pursued by ruthless goverment agents he plans to save himself by exposing the bike to the public on a live TV show hosted by a popular singing star. But, even the lovely Eve has secrets of her own and the government has much more to hide than just a transforming military motorcycle. As Shogo begins to unravel the mystery of the bike, he discovers a reality-shattering secret about the city and the world he thought he knew. (Source: Anime News Network)

Genesis Climber Mospeada

The story takes place in the 21st century. Due to the fact that pollution was becoming a major problem, scientists had developed the use of hydrogen fuel called "HBT" as an alternative to fossil fuels. At this time humans have colonized Mars in search of new place to call home as a result of overpopulation. In the year 2050, a mysterious alien race called the Inbit invaded the Earth. Unable to fight the Inbits, Earth became desolate with only a few pockets of human beings scattered throughout the planet. Many of the refugees escape aboard a few remaining shuttles to seek shelter on the Moon. The Inbit set up their main base of operations in the Great Lakes area of North America called "Reflex Point". (Source: Wikipedia)