Welcome to Atop the Fourth Wall, where bad comics burn. However, this video is not about comics - but Pokémon! It's always said that trading Pokémon off of Generation 1 (Red/Blue/Yellow) and 2 (Gold/Silver/Crystal) cartridges into Generation 3 and up is impossible! ...Or is it?
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NOTE: Other suggestions have been thrown in that would also work, including using an Everdrive GB to get around the GB USB Smart Card, since that uses micro-SD cards inside of it and doesn't need proprietary software to work. And while it doesn't work with the Mega Memory Card, you CAN trade from a regular cartridge onto it and then directly convert them from there since it uses the standard rom formats and the like on it. That being said, having just did some google and ebay searches for it, it IS rather expensive, hovering around $60-$100 (which were instant-buy options. On Ebay, bidding for them can be cheaper, but it's not a guarantee of receiving it). Someone else mentioned they'd try backing up the save using a Retron-5.