Level Point requirments are hard to reach, I got some tips to help make it go faster.

Style Bonuses- While ally is holding enemy, press square button to form a linked attack.

Smash windows and break glass in stores, buildings, and cars.

Steal Car Radios

Use mayhem command to trash cars

Mug people

Perfect spraypainting (no rumble) 1000 points!

Perfect lock pick (allign the tumblers in the brown zone perfectly to get 1000 points)

Pick up hats from enemies, easy style bonus 150 points

Throw enemies out of windows, off balconeys, into the path of trains, instant kills get style bonuses.