More like CFAA (unauthorized access). One might avoid certain penalties by staying under $5000 equivalent IAP. Of course this sounds ridiculous, but we live in ridiculous times.
I'm struggling to come up with a way in which the lives system could possibly be defended as a copyright protection mechanism (it's a mechanism to funnel users into it's in app purchases, not to prevent use of unauthorized copies... and in fact copies of the software are given away freely). This is basically Gamesharking your game, which has been upheld in courts IIRC.