The link for the C# Unity is pointing to the source, and the link for "both files" points to a folder, where you have to find the "the game" file. Maybe it would be better to fix that.

I got stuck where the game told me there was 6 boxes left, but none of them were on the screen.

Fun concept! Would be cool more boxes where added when clicking on the spheres, and it would also help extend the game time.
I could see this being a fun mobile game.

As @thiagofr mentioned the game file was not easy to locate, and some of the boxes seemed to get stuck off screen.

Fixed the links sorry about that guys seems in my hurry up and get it posted i got them mixed up haha.. thank you for your thought and letting me know about that... i was worried about the boxes getting lost at times .. when i complied it the first time it kept telling me there was 0 left..

The concept is good but it needs more packaging. Maybe with a proper story will make it more fun!

I run into a situation that there are some boxes fly out of the camera so that I can't end the game.

thank you cliff for your input .. i never made a game before this is the first as well as my first time using c# and unity ... so i had no base code to work with and learned the code and made the game all in the same time frame .. lol next go round i will have a better game for sure and i will return to work on this at the first of the year ... but thank you for your thoughts and input.. and the boxes should not be doing that still ( getting lost) i set up walls to keep them in but might have messed up on the top not sure just more bugs lol ...