Dragon Hills is an 'endless runner' type of game where you go through some hills with the titular dragon, collect cash doing so and use that cash in order to unlock upgrades that will help you do better the next time around. Clunky controls and uninteresting upgrades made this game something I didn't want to spend more time on than I had to. It's not terrible but it's also not very fun, so you can pass this one.
My main issue with the game is the almost complete lack of invincibility after you get it. Even with upgraded number of hearts - and thus number of hits you can take - I ran into situations where I just hit a spiked wall, bounced back for a microsecond then hit the same spike wall again and again until all my lives were depleted. I understand the need for obstacles in games of that style, but such walls could've taken a heart or two away and then exploded, they really didn't need to stay there. There are plenty of other obstacles too, enemies that fire projectiles, lava and bosses that you have to hit with your giant sword.
The game controls are simple, you press to burrow and then hold to leap from the ground, this allows you to jump and collect pattern of coins, it's interesting, but you don't get much from it. There is nothing in lieu of missions to complete or objectives besides getting to the next level, from where you'll be allowed to get more upgrades, probably to help you go further. The upgrades aren't very fun, most of them unlock power-ups that you'll pick up randomly on the track, so they're not very consistent. I wish there was more in terms of upgrading your dragon and getting cool powers.
I don't have much more to say about Dragon Hills, the typo in 'Armored' made me laugh, but that's ultimately not enough for me to keep playing a game, there are plenty of other endless runners, so look elsewhere.