These might be some stupid questions, but I haven't found an answer on them anywhere, and I'm just unsure about it. I implemented the code for Admob banner ads in my Android game as shown in the Google Mobile Ads setup, and everything works fine so far. Now I would like to build the final APK for the Playstore, and I don't know if or what I should do about this line of code: GoogleMobileAds_UseTestAds(true, "E3DAE5ACB5072BA36197B94E287927C9"); (This is the line from the setup page, of course I used my own test device id.) Should I just set this on "false" for my final APK, or should I completely delete it? I probably should just delete it, but like I wrote, I'm not sure about this. And how do I implement these here: GoogleMobileAds_HideBanner(); GoogleMobileAds_ShowBanner(); I wanted the banner to only show in the room where the game takes place, so I tried to implement the above two lines in a step or create event in one or the other way, but nothing has worked so far. I found a work around for it, but maybe someone could give some tips for this. Many thanks for any advice about my two questions above .