Hello!
I just found this site, but I must say, I am quite impressed. I am an intermediate speaker of Russian (I studied in St. Petersburg), and I was looking for something to help me keep up and practice my vocabulary. This site, with all of its games, pictures, and audio recordings, is perfect for that. Nice job.
At the moment, the site only allows you to combine up to 10 lessons into one big mix. Since I am really just looking for a quick way to practice vocab every day, is there any way that this could be expanded to being able to combine all available lessons in a particular language together for a mixed game or something? It would just be more convenient, but I understand if it's not technically feasible for some reason.
Also, as long as you're keeping track of points earned in the exercises, you may as well make some answers worth more than others--particularly typing. But maybe that's just my opinion on what's the hardest.

Also, looking toward the future, anything you can do to include full sentences (in order to provide the context for the vocab) would be awesome.
In any case, the site is wonderful. Thank you very much.