From the Publisher's website:
A stripped and streamlined rule set for Dog Town the roleplaying game of crime, money and violence set in the seedy underbelly of decadent and dangerous 1970's New York.
This book is to be used in conjunction with the other books in the series for setting information and flavour. The intention is to remove most of the crunch of character creation in the Core Rule book and to provide a more free wheeling rules lite version using
The tenGINE (a system that combines familiar aspects of Bust and the Split System) that can be quickly picked up and played, but can still be integrated with the Core Rule book and Stray Bullets when more depth and detail is wanted.