Legato Madness!
String-skipping, wide stretches, tapping, odd note-groupings, and furious speed abound. Learn the entire piece slowly at first, and work on accenting the first note of each beat (left hand index finger when ascending, tapped middle finger when descending). Don’t sweat the odd-groupings too much; the goal is to just cram it all in there! Everything else should be fairly straight-forward; let me know if you have any questions. Good luck!