Is it only through the skin? I could see it being useful for some sort of implanted medical device/monitoring system.
That way you have something subcutaneous but the power source is strapped to the outside of your body so you can remove for short periods of time to wash/recharge it.
Even if it were an exact clone I don’t think a single company should have a monopoly on the idea for almost 30 years. Pokemon red was released in 1996, 28 years ago. Why should they still be able to be the only company that releases pokemon-type games?