How to do?
through the laser you can do the planets explode before they arrive at the base or
you can move them to the right or left, always being very careful not to make them explode!
For each planet that arrives at the base, increases the percentage for to advance of the level.
For each planet that you explode, remove a little of the percentage used to advance of the level.
For each planet that explodes when it arrives at the base because there is no place, eliminates the percentage to advance of the level, in practice it is best to blow before the planets dissolve if you want to advance of the level.
To make score you have to make rows of three or more planets vertical or horizontal, as well as give you the score will also give you a good percentage to advance of the level.
I hope in a fun!