The three versions of the kit became available in HK today. I bought the one for Bludgeon. The official promo pic shows best what the kit comes with: Let's start with a comparison with the Head Robots kit from a while back. The rightmost head comes from the HR kit and is customized with a bit of paint. The kit comes with two different helmets and two heads of the same mold but with different paint schemes. One head is painted with metallic colors and the other with flat colors. 2 helmets x 4 faces (well, if we count different paint schemes) = 8 head configurations. And even better news, the heads and helmets are compatible with the HR head and helmet. You just have to cut the peg on the HR head a bit for a better fit. So with the HR kit, that's 3 helmets x 6 faces = 18 head configs, BOOM. The PA-02 heads and helmets are made of pliable, rubbery plastic, unlike the hard plastic on the HR kit. It makes the former easier to install, although unfortunately this also results in a looser connection with the neck. Also, the skull faces are in dire need of a wash. The katana from PA-02 is bigger, more detailed, and heftier--I think it has a bit of die cast. The hilt of the katana can be compressed for tank mode. Now some bad news. The kit does not come with instructions. I struggled to figure out how the big rifle can be mounted on the shoulder. When I finally figured it out, the found that the peg was to thick for the thin slot on the shoulder. The peg broke when I forced it in. If you're getting this kit, make sure to file/sand the slot or peg for a smoother insertion. I already asked my retailer for a replacement. No response yet. Overall, I think the kit is a worthy upgrade to the HR kit, and a must buy for those who just have plain-vanilla versions of the Bludgeon mold. It's a good-looking kit and provides tons of options and playability.