Nostalgia is tricky.There's a perpetual sense of 'the grass is greener' when it comes to our childhoods, and rose colored glasses are the prescription most of us wear, like it or not. Going back to the cartoons, TV shows, and games we enjoyed as children is usually a dangerous proposition. It is for me, anyway. Things are never as wonderful or as exhilarating as I remember them being at ten years old on a Saturday morning, bowl of cereal in my hands, singing along to the theme songs of my favorite cartoons. Take those same cartoons as an example: watching them today, I recognize that those shows were cheaply produced and thinly disguised marketing ploys, designed to sell merchandise to the children who watched them. I cringe at how poorly written the dialog is, and shudder at how terribly they were animated. I don't try and watch those shows anymore, nostalgia or not: my memories of them are better.'Remember when...?' is a dangerous question. It usually ends in disappointment. Especially when companies mine nostalgia to sell their products. Bell bottoms look as stupid as they did in the seventies, and no matter who is writing the latest Teenage Mutant Ninja Turtles cartoon revival, it's still a shallow attempt at cashing in on your childhood memories. It's cynical and coarse, and all too common.Nostalgia. It's not only tricky, it's a double edged sword. And if you let it trick you, you'll often get cut, no matter what side of the hilt you're on.Which is why Retro Game Challen.