Working on the plan of game mechanics

Currently I am working on a game design plan, to fix the final state of the game development. This is my very first project, and I am learning constantly. When know the common mistakes, I do mistakes, but the best way to learn best practices on long term to fall in traps sometimes. So I want to keep it simple, most important thing to finish up my project, even if I don't bit the any of this kind of arcade games. Maybe the fun part's come in the V2 :D. Good luck for me! Ha ha...

(To create diagrams I used the https://app.diagrams.net/ online tool.)