Fly Balloon is a level-based flight simulation game where the player controls an airplane through a series of increasingly difficult stages. In each level, the objective is to navigate through obstacles while collecting stars and avoiding hazards, such as other planes and bombs.

The gameplay is driven by simple touch mechanics, where tapping the screen controls the plane's movement. Each level presents unique challenges: in the initial stage, players must fly and collect stars while avoiding bombs; in the second, they must avoid oncoming planes; and in the third, additional planes appear that actively shoot at the player.

The game features dynamic weather conditions, randomly switching between clear skies, rain, or snow, which can alter the flying experience. A magnet item is available once per game, attracting stars for a brief period to assist in completing the level.

Players can track their progress through a leaderboard displaying the best pilots. Levels beyond the initial three are locked, with a "Coming Soon" notice indicating additional content is yet to be unlocked.

A tutorial is provided at the start of the game to introduce the mechanics, guiding the player through the controls and objectives. The app includes a game evaluation button for feedback and improvement.