What happens when you gut a pumpkin and replace its insides with heat-shrink tubing, solder, 128 LEDs, eight AA batteries, an Arduino board and clever programming? You get what self-proclaimed tinkerer Nathan Pryor calls "Pumpktris." Over the years we've seen the classic puzzle game Tetris ported to some amazing things, but a piece of fruit? Just in time for Halloween, this high-tech spin on the jack-o'-lantern features a fully playable Tetris game controlled from the pumpkin's joystick stem. Whether you're a hardcore do-it-yourselfer, or a diehard Tetris fan hoping to top the system's high score (9,800 points), you can build your very own Pumpktris. Of course, its creator estimates it'll take around 12 hours or longer to build the custom LED matrix and joystem and carve up the gourd of your choice. If you're up to the challenge, you can find a complete walkthrough of the project at the source link below. However, if you'd just like to see this quasi-organic gaming rig in action, check out the groovy video after the break.