Thanks for your feedback :)
Just look at your video again and look at the top left corner and you will see all the pieces taht you could pick but you didn't see. Maybe you should retry to play with picking new pieces from ground ;).
It is really weird players don't see them, even if they are 3 and of different colors. I need to work on that.
The part on the bottom right with white symbols elements just show the relationship between elements. In that circle of relationship, the most close symbol element to the right of another is the most weak against the latter.
And the rectangle shape on the total bottom right is the repair tool. It moves on damages when you hover them.
About game windows size, i have a major issue with wondows 10 that i have to fix soon but it requires a huge update asking me to copy all my code on a new project. Boring but i will do that. Usually, game is always set to fullscreen.
I could need help with music on the game, i plan on taking someone to work on it because if i do it myself it will take a lot of time. I have already some idea of what type of music i wnat but i am curious about what type of music you could see on my game :).