Animation
First, create a spritesheet via a website like piskelapp.com. Export your project as a PNG spritesheet.
1. 2.
Here’s the spritesheet for this character (they are slightly different circles in case you couldn’t tell):
Import your spritesheet to your assets. A popular method is dragging the image file from its folder to the asset window of Unity.
Visit Unity’s Introduction to Sprite Animations Tutorial to continue.