Zikzin Run is at the TGS(Tokyo Game Show) 18-21 Sep and there will be competitions on 20-21 Sep with prizes to give out.
Relevant pics from twitter:
The Exhibition Hall
ZIKZIN RUN STAND (Posters, displays, etc.)
ZIKZIN RUN in the Show Guide
Worker there in ZIKZIN RUN T-shirt
Gift bags for game winners
Gifts: One eels said she got a ZIKZIN RUN T-shirt, posters, two TGS limited gift cards, while there was one eels said she got a USB