Mix the drunken chicken marinade and 5 spice powder in a large zip lock bag with the game hens. Refrigerate overnight.
Heat your oven to 350 Degrees. Remove game hens from the marinaid and add to a roasting pan. I like to add a little bit of the marinade for basting, and a little bit of extra 5 spice powder on top of the hens. Slice the lemons into wedges, put about 1/4 lemon into each hen and save the rest for garnish. Roast hens for 45 minutes to an hour or until fully cooked. Serve with Lemon wedges.