Today, the Lego Game Boy officially goes on sale. It’s surprisingly good. But in Australia, one woman has already created a more amazing version. Natalie the Nerd, the self-taught circuit board designer and Game Boy modder whose gorgeous transparent Game Boy we featured in August, is doing what Nintendo and Lego didn’t: make it playable.

Let me be clear: this is not an emulator. Natalie did not stuff a Raspberry Pi in here. It’s far more impressive than that. What you’re seeing are real Game Boy cartridges, running on real Game Boy chips, soldered to a real circuit board of Natalie’s own creation. Working buttons, too.

To fit it into the Lego Game Boy, she had to create a complete Game Boy board smaller than a Game Boy cartridge itself — so she did. Adding “the smallest screen kit on the

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