All the necessary assets to make the game are in these folders.
The most important part is folder Scripts.
All of these scripts should be used in order to make the game work as it should.
Placeholders for our scripts can objects in any shape, but colliders are limited.
That means you should watch all the references for collider types in scripts.
Prefabs should be placed in Resources folder in almost all cases.

In any case, contact me on peter.teo.pagac@gmail.com for further information about source code of this game.