"Google AdMob may collect the following types of information automatically: IP address (which may be used to estimate the general location of a device) User product interactions (including app launch, taps and video views) Device and account identifiers (Android advertising ID app set ID and other identifiers related to signed-in accounts on the device) Diagnostic information (including crash logs, app launch time, hang rate and energy usage)."
AdMob collects advertising IDs, app set IDs, account identifiers, crash logs, energy usage, and detailed app interaction data โ going well beyond what's needed for a rhythm game.