Soviet Union 2010

You control a space ship that's equipped with a cannon. Your mission is to destroy as many USA-serving ships as possible, and get out alive while getting as many points as possible.

Some scientists from Vladivostok have invented a time machine and used it to go to back to the 1960s, the time of the Space Race between the USSR and USA. It worked, but on return to 2010, a malfunction sent them to a parallel universe where the Cold War is still going on. You're one of the members of the Red Army. Save the scientists!