I mean, if the theme was "dishonesty" or "lying" in general, we could do all sorts of things, but if "the GAME is A lie", that is very specific. It doesn't even make grammatical sense, only sentences or assertions can be lies, not things. I just can't understand the English of it, and I'm English :/
**EDIT as several people have said: I read it wrong. the theme is "the game is a liar", which makes a little bit more sense