Reflect the laser to smash walls and cut chains, blow-up bombs, disperse toxic liquids, and smash through walls. Use the cannon and shoot to destroy radio waste bins and bombs, break down chains, and move various objects. The quicker you are able to achieve the level goal and the less time you take, the more stars that you will be able gain. Once completed, you are able to replay any of the physics-based levels. Make sure to check out the list of achievements available and try your best. The rules are straightforward: the quicker you kill monsters, you get more points. Every shot counts. So, the more stars that you use, the faster you can kill all the monsters. To improve your score, it is possible to go back to the past level and replay it. More points can be earned for combinations, achievements and new records.