I'm making a space invaders clone and before I get into any of the hard coding I want to figure something out. For my aliens I'm going to be using a sprite sheet that has only two images of the alien. One with its arms up and one with them down. I know how to animate the image from the sprite sheet but the issue is getting many of these aliens onto the screen. I was thinking about creating an array with all of them in the array but would that make sense to do it that way? or is there a more simple way to this?