JDM Nintendo Gameboy Speedometer install

[@cuberyllium]

Cool idea! Never seen it before!

[@subidub_van]

Make sure you cut a hole for the light sensor or it will think it’s always dark and keep the screen dim during daylight and hard to see.

[@Cameron-d1q]

I wonder if this could be integrated into a cartridge that just has data fed to it and would allow the original game hardware to still be used.

[@TxmmyL33T]

now you should try the konami code