use the spaceship to destroy the alien ufos space to fire ,up to do special attack there are 4 different space ships and 4 different special attacks be quick to destroy the 3alien ufos before they destroy you p.s. you might not always get different space ships p.p.s.the four special attacks namely 1.Speedy 2.heat seeking red ufo 3.heat seeking yellow ufo 4.heat seeking spider ufo
