If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Your purpose in the game is to make explode the dangerous sky-pieces. You need to set the walk-trough of rocket to collect the dynamites and to reach to the dangerous meteors. You can set the route, as the way you want, by using the blue points founded on the walking-trough.
This game is played with mouse only.