Create the Aliens
Next, you need to add your aliens to the game.
Each alien needs to be a separate sprite in your Scratch project.
Click on Pain New Sprite to create your own alien, or Upload Sprite to choose an alien from the Scratch Library.
The more aliens you add to your game the better it will be.
There are four alien characters you can download to use in your game if you want to.
Each alien will need a splat costume that is used when you hit it and earn a point.