- The shield continuously rotate around the planet to block incoming asteroids
- Do not let asteroid hit the planet core.
- The core will lose some of its internal energy each time it collide with an asteroid.
- The game end when the core run out of energy.
- Planet core's energy recover slowly
- Use control button to manipulating the shield to block as many asteroids as possible
- There are only 2 button in the game, with 2 different function:
+ The "Hold" button: use to make the shield stop rotating
+ The "Speed Up" button: use to speed up rotation speed of the shield
- Use them wisely to block as many asteroid as possible
- Adjusted game difficulty
With Family Sharing set up, up to six family members can use this app.