From the back cover:
"Welcome to Bubblegum Crisis EX, the new expansion for the Bubblegum Crisis Roleplaying Game. Here, you'll find the coolest stuff that was never seen in the anime series. That's right, BGC EX gives you never-before-seen prototypes, variations, and advanced versions of BCG's many mecha!
BCG EX Contains:
3 New Battlemovers
5 New Motorcycles
7 New Powered Suits
7 New Motorslaves
8 New Personal Items
10 New Hardsuits and Hardsuit Modifications
11 New Vehicles
24 New Boomers
You'll get information translated from Japanese sources, complete Fuzion game stats, and original Japanese artwork. In addition, BGC EX provides a stand-alone hardsuit construction system, tons of scenario ideas, a complete adventure, and more!"