The bovines have had enough of the outsiders and are battling back!
Help the outsiders come back to their home planet through different levels of outsider air terminals.
Guard the space ports between levels to access coins.
These coins open different power symbols that will help you on your trip.
Keep an eye out for the bovines on later levels. They may very well pulverize a UFO or four!
Terminal51 for Mac
Instructional exercise and a few depictions converted into: