I'm not sure if there's any correlation, at least in my experience, but congratulations!
One of my apps, Political GPS, suddenly made around $1200 in one day (had been making around $20), and sure enough, I checked the US New and Noteworthy, and it was one of the featured apps. I had not been featured on any other countries' stores before that, though, and was only featured on the US Store (my app is pretty US-specific, though).
That took me up to #2 in Paid Reference apps for about a week, but after I was no longer featured, I dropped pretty quickly and am currently sitting around #45 in Reference apps.
Hopefully you'll have better luck than me with this
BTW, the game looks great!