He has created five cartridges which hint at an alternate reality where Nintendo officially released these games for home console fans – but there is, of course, more than meets the eye in this situation.
Below Average Gaming has taken a Super Game Boy accessory – which allows you to play Game Boy games on your SNES – and performed some seriously complex modding to create these self-contained carts.
This isn't some simple cut-and-shut job, either; the mod requires you to desolder the Super Game Boy's cartridge connector, fix the clock speed (using a special Super Game Boy Clock Mod board), solder on a flex cable and fit an SGB Link board to allow trading to take place as normal. He then had to cut out the inside of a SNES cart shell to make everything fit and print his own custom cart label. Phew!
You can watch a video of the entire process below, which shows just how good you need to be with a soldering iron.