Okay, I found out how to do this ...
http://www.achieve360points.com/forums/viewtopic.php?t=33941
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1. Put game on standard difficulty
2. Race through Lvl 1 and 2
3. When you get to lvl 3 start to slow pace down by getting one crystal at a time
4A.Kill every enemy that appears before getting next crystal. Killing these enemies eventually leads to more lives. It will take a while be patient (I got all 30 by lvl 16 but i missed a lot of bonus crystals and died about 2 or 3 times)
4B. Every so often a bonus crystal comes pick them up (obviously)
By lvl 7 i had all 30 crystals. Also i accidentaly shot some so i saw about 32
5. For the no mines for 20 lvls follow the steps 1-4A picking up bonus crystals is optional and it should be fairly easy
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