The warning functionality not guaranteed on devices over iOS8 reflects the sad reality that is also the biggest flaw of the mobile software market. Companies are just not prepared or willing to honor their clients treating their software as disposable content.
The game is perfect, as a kid I expend a lot of money on arcades playing this.. I bought this app a long time ago and its not a game that I played until the end and wont play afterwards, its a piece of my childhood that I would like to go back to sometimes, putting all this sentimentalism aside, its hard to not think that when you buy a app it has an expiration date.
We do not control IOS version on iPhone, if you buy a new one it cames with the latest and greatest and it is not possible to go backwards and install an old iOS, if you unadvertised update your iOS, your done what does not work wont work anymore because despite having the man power to rebuild the software they are not willing to do..
If you do not have ios8 and are willing to gamble, get this game cause its incredible, despite the questionable ethics of this giant company who is brave enough to to think that a little text on the description can mask the fact that its selling something to you that they know, may not work at all...