I've had a few varied experiences with the ads on the Play Game page. Some of the ads can be super intrusive and inappropriate. At this point is super difficult to tell what varies from user to user and what's concrete.
I highly recommend getting an ad blocker, not only to disable the pop-ups on the Play Game page, but to reduce the likelyhood of getting viruses from ads and pop-ups on other sites as well (DeviantART is bad for this, if you weren't aware. I never turn off my Adblock for dA). It's true that ads help fund sites to keep them running, but many of the ad blockers feature an option to enable ads on specific sites if you want to continue supporting them that way.
I personally use Adblocker Ultimate for Google Chrome. Though it does work, it still takes several clicks to log in on my end.