Recommended App: BADLAND
In my opinion BADLAND is one of the best games I've played since I first encountered Trundle back in 2010. I love that it is easily playable by strategically tapping, holding, and releasing one finger to navigate the forest creature through a side scrolling puzzle of saw blades and an assortment of obstacles.
I love the artwork in Trundle and BADLAND takes that same art style to the next level. I think you will enjoy the various levels of textures and gradients and subtle background animations. The soundscape is also a treat, with or without headphones.
Having played through all of the 60 levels currently available, I find myself wanting more. I'll have to settle for playing back through and picking up a few more achievements. For an Indie game this would solidly land in my top ten iOS games. It's especially friendly to the iPhone, but also syncs to iCloud so it can be played on your iPad without losing progress.
I won't go into an explanation of the game's objectives but if you like to solve puzzles and enjoy a good side scrolling game, you should definitely give it a try. The developer, Frogmind, has more levels in progress so get give it a try. It's well worth the price (FREE presently) and there's more value coming. For more screenshots and gameplay video, check out the BADLAND site.