StratoStep is a game that runs on iPhone and iPod Touch.

The object of the game is to roll the ball all the way to the end of the level without falling. You roll the ball by moving your device. Along the way, you must collect all of the oxygen atoms to earn the points needed to complete the level. If you collect all the oxygen atoms and make it to the end of the level, then the next level will unlock.

To play StratoStep, follow these steps:

1. Select the play button in the lower right corner of the main menu.
2. Select Level 1 or another level if you've already unlocked it by completing the level before it.
3. Once Level 1 loads, tap the screen to begin playing. Roll the ball by moving your device. If the ball falls, then the game will end and you'll be taken back to the beginning of the level.

You score points by collecting oxygen atoms, which are located along the path you're traveling. The further you get, the more oxygen atoms you'll collect and the more points you'll score.

You complete a level by collecting all of the oxygen atoms and making it to the end of the level. You must collect all of the oxygen atoms along the way or you won't have enough points to unlock the next level. For example, once you complete Level 1 by collecting all of the oxygen atoms and making it to the very end, then Level 2 will unlock. You unlock levels by completing the level before it. When you first play StratoStep, only Level 1 is unlocked so you must begin there.

You collect oxygen atoms by rolling into them.