You have to judge the mood carefully before you break out Tekken 5. If she’s feelink spunky, combative and aggressive, it would be an appropriate choice.
However, if she would like to do something together and not delight in pummeling you (or getting pummelled herself), you may like to go with something less sparring. Perhaps a nice tennis game or something.
-Pull over her ghoongta
-Sing Kabhi Kabhi
-Get her to bring you a glass of Milk
-Keep on singing Kabhi Kabhi
-Put your arm around her...the lights will go dim...and let the games begin!
Aside from all the video game jokes, if you want it to be nice you can try several things, to enjoy. YOu don't have to take the huge plunge right away. You have your whole life for that, just try to get to know each other and be comfy with each other.
You can just sit around cuddle and talk and discuss what you expect from each other. Maybe you can decorate the room really nice for your wife with candles and roses or whatever flowers she likes. You can even get a cold sparkling cider and have drinks and make it romantic.