Simply dodge the missiles whilst picking up gems.
Different gems give you different rewards. Gold gems give you more credit to buy the better rockets, green ones give you a 2x speed boost for a while and blue gems give you a force field that can withstand a missile strike.
Your score is based on a combination of how long you survive, the gold gems you pick-up and bonus points for causing missiles to collide with each as well as getting multiples of 5 gold gems.
As your credit grows you can exchange for faster and more agile rockets which will, in turn, give you more chance of surviving the missile bombardment for longer and pick-up more gems.
For those who don't mind watching the odd advert, we even give you a chance to double your score and increase the speed you gather credit for better rockets. We won't tell anyone if you don't.
You'll see the odd advertisement at the moment. We plan to add 'no ads' in-app purchase soon. Don't forget, ad revenue goes towards doggy treats for Kasper.
Please rate and comment so we know you like the game. It will spur us on to improve it based on your feedback.