Dr. Evilman's Hot New Game

For years, you and the other Space Cadets have been fighting against Dr. Evilman and his Corporation. Unfortunately, things don't go your way and you are captured by him. Weirdly, he doesn't tie you up and torture you. Instead he shows you this game...

PS. Up and down arrows to move up and down and z to shoot. Also, to get the ending, you have to get 20 points.