Harder levels require the user to spell larger words, whereas shorter levels require the user to spell simpler words, often as short as 3 letters.

As the game progresses, more enemies are spawned, and the time between successive spawn events becomes much short. Likewise, the total number of spawn events and the time between spawn events is shorter, giving the user a shorter time to spell the target word.

A series of enemy encounters is generated from a linked list, which in turn is generated dynamically using random values for the spawning intervals and the number of enemies spawned per encounter.

In order to spell a word, the user must fly through the letter rings whose letter corresponds to the letters in the target word. The plane must fly through letter rings in the order in which letters occur in the target word or else the words won't be spelled.

The player loses when health level falls to zero or when the total number of encounters for a given series of encounters, as determined by the number nodes in a linked list, runs its course.

The playe will complete a level when the target word for a given level is spelled in completion, which means the player's plane has passed through all the letter rings whose letters correspond to the letters in the target word in the order in which these letters occur in the target word.

The player is moved via swipe gestures. Swiping left or right causes the biplane to roll left or right, respectively, while swiping up or down causes the biplane to pitch up or down respectively.