8bit Doves - Nitrome - $2.99
If you would like to download this game from the app store, click here
8bit Doves, despite being depicted in only 4 colors, lets you live out an amazing flying adventure. You play as a dove, I think, that has to try to fly out of a prison. Along the way, you have to try to collect as many doves as possible. The doves act as "stars" would in another game. The controls to the game are very simple, you click on the left side of the screen to move your dove left, and the right side of the screen to move your dove right. As the dove turns directions, the controls do switch a bit, but it's very easy to get the hang of. There are three different level packs, each with increasing difficulty. Each level pack comes with 10 challenging levels. There are different obstacles in the game that obstruct you, such as growing walls, moving walls, and speed zones. At $2.99 the game might seem expensive, but it is well worth it. There is also a free version of this game that is highscore oriented rather than level based, called Endless Doves.
Click on the image below to see a gameplay video of 8bit Doves