I made a few 2d game animations for the Unity team on their 2d GameKit project.  Check em out!
You can also download and play the game right now:
https://assetstore.unity.com/packages/essentials/tutorial-projects/2d-game-kit-beta-107098


It was definitely a fun learning experience.  I think if I were to make them again right now I'd do a few things differently.  I wish I'd had more time to mess with the rough animations in a prototype phase, but budget and time constraints are a thing.