Funny -- I JUST finally figured out exactly how to do it, get the achievement, and then understand the easier way to target (using the R-Stick). xD
If you see me playing a game you need help with, or see such a game in my history,
there may be a small chance that I still have it, or can shell out a little cash to retrieve it.
Feel free to politely request assistance, and I'll do what I can (if within reason).