Towards the end of Season 6, billboards for Hydra Q began to appear around the arenas. However, the actual pictures for said media were missing which was mentioned in the Sponsor Rivalry Vignette a few days later after they first appeared.
The billboards contained the following text:
MultiCo_OS V.105.05
SAFEZONE
HYDRA_Q.JPEG
SAFEZONE
HYDRA_Q_LOGO.JPEG
SysError_Code_*F1|35-N07_7011|)
This is the first time that MultiCo OS has appeared instead of MultiCoDOS. Besides that, the text at the bottom right reads File Not Found in leet speak.