Following the Unity Tutorial Videos I downloaded the package from the asset store first. Added the background and ufo then added 2d colliders to them. And made the camera follow the player(ufo). Lastly I added the pickups also with colliders, but I did not yet make them pickable.
From this project I learned how to add 2d colliders and how to work them and how the function. The scripting part I’ve learned a few things but not enough to clearly do it on my own, maybe. I’ve also learned how to add in sprite renderers and sprites.