Electronics engineer James Newman likes Tetris, but instead of taking the easy option and buying a second hand Game Boy from eBay, he decided to splash £40k building his own gigantic "megaprocessor" on which he plays the famous Russian puzzler.
We're being a bit harsh on Newman, of course - that's not the only reason he constructed the machine, which is 33ft (10m) wide and 6ft (2m) high and tips the scales at roughly half a tonne.
He hopes it will be used as an educational tool, and will eventually be installed in a museum. We're not surprised that he's keen for it to be relocated - thanks to its 40,000 transistors and 10,000 LED lights, the machine consumes 500 watts of electricity at Newman's home in Cambridge, UK. His electricity bill must be enormous.
Despite its size and energy demands, the Megaprocessor isn't actually that powerful - at least not compared to modern technology such as your humble smartphone. Still, as Newman told the BBC:
The machine on your desk may be a million times better than what I have built - but mine is much prettier.