You are my GOD !!!! regarding soft sprites usage, is it only when aliens are static at the top of the screen ? I could them moving by one char to the left or are moving aliens also soft sprites (Which would be really impressive as it would look like the same technic used in "Bandits"). I used to consider "Bandits" as the most tech challenging game ever made, but Galaga is now a serious challenger :) Many thanks again !!!!