Picking hit mobile games is a lot like picking race horses, and if I were a betting man I’d put my money on Ferno, the just-launched high score chaser from Backflip Studios.

The premise behind Ferno is simple enough. Just drag your finger along the screen to collect the fire. But not the purple fire. And don’t lift your finger or you’ll bank your score too early. Unless you have to, because you’re so damned big now.

I’m over-complicating this. Touch orange things. Don’t touch purple things. Got it?

With no in-app purchases, no advertising that I’ve noticed, and no sticker price, I have no idea how Backflip Studios plans to turn a profit on this. Then again, I suppose that’s not my problem. My job is to play it, and play it I shall.

I’ve been fiddling with Ferno for the better part of an hour, and I’m not particularly good at it. I’ll keep trying until I am, though.

If you want to join me, grab it for free from iTunes.