While there is no single official "Helpful Report" document in the repositories, several projects under the name Football Bros provide information for both players and developers. The primary repositories are centered around Football Bros
Go to your favorite Football Bros GitHub repo and click "Fork". This creates a copy under your own GitHub account. football bros github
If you are looking for or analytics reports rather than the arcade game, these repositories are highly rated for "football bros" in the analytics community: GitHub While there is no single official "Helpful