Just made all retroachievemens in this game in hardcode mode (without save states). Probably the easiest NES game with the easiest achievement set.
If you have never played, I recommend giving it a try. The gameplay is great, nice soundtrack.
What is the easiest game for NES in your opinion?
I agree, the price point is far, far too high.
...But then you also need an attachment between your phone and the xbox controller. Which do exist but might be on rare offer. OP and everyone else who picked it up want a particular experience, and accessories like this aren't a wide market.