Edit: On second thought, the key is to control your speed with the boxes. Once I started doing that I got 6000 easily, this is a very easy achievement. Congratulations! You just won the Runner's High Badge and 30 points!
Congratulations! You just won the Charming to the Last Badge and 30 points!
First upgrade Fire rate, then power, make sure your rate is around 5 more than your power. Don't worry about upgrading speed, it's worthless.
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