User_Review API Endpoint Documentation

The documentation for the user_review API endpoint notes that it returns a "game" field. After some preliminary testing I've never been able to find an id that returns a game field, only a wikiObject field. Is this an error in the documentation or am I doing something wrong?

Any update on this question? I'm getting a bunch of user review results but can't seem to filter by game

EDIT: Found answer here - http://www.giantbomb.com/forums/api-developers-3017/q-how-to-query-user-reviews-via-the-api-for-a-game-1454356/