Super Dimension Century Orguss (1983)

In the year 2062, man has developed a space orbital elevator, a massive device reaching from the earth to the heavens. Unfortunately, it is also the cause of a great war between Earth's two superpowers. In a desperate plan, Orguss mecha-fighter pilot Kei Katsuragi of the Freedom Space Corps is ordered to destroy the elevator with a dangerous new superweapon: the Space-Time Oscillation bomb, which draws upon energy from the fabric of reality. Kei carries out his mission, but when the bomb explodes, it causes different dimensions of reality to coalesce together into a new gestalt universe. Kei crashlands into this brave new world, full of aliens and robots, where he finds himself caught up in another superpower war, between the militant Chilam and the Emaan gypsy races. Both sides see him as a Tokuiten, a singularity and the key to victory, as well as fixing the entire dimensional mess. Now not only must he survive in the new world, forging new relationships and reconnecting old ones, but he must fix reality and set things back to normal.