From the Back of the Book:
Take the action into the streets with this new supplement for MEKTON, the Japanese Robot Combat system. With Roadstriker, converting Mecha Cars, Armorbikes, personal armors, advanced police and high tech combat vehicles are at your command! Roadstriker comes with Basic Combat Map and counters and the exciting Mecha Police adventer, ARCADIAN DEATHROAD.
Advanced Transformables - a new expansion for designing multiform MEKTONS! Now Astrofighters, Hydrofoils, Tanks, Walkers Beastmecha and other exciting types can all be added to your MEKTON campaign!