Will be travelling to Japan later this year and found out about these workshops in Tokyo where you get make “your own” modded Gameboy. Guessing modded refers to being able to choose custom shells and buttons, not so much to anything else there might be (I am not very knowledgeable about Gameboy mod scene).
Looks super cool, but is very pricey. Around 55.000 Yen for different courses, so I am a bit on the fence for booking it or not.
Anybody here have any experience with these? Would those be “normal” Gameboys you need cartridges for?
Edit: found a video of one, just in case someone is interested seeing how it goes https://www.youtube.com/watch?v=wjHSz8goaZ8


Thanks, appreciate all the info!
I found a video of a blogger going to one of these and it sounds a lot like you describe, for a second one could see two extra ports on the left side which looked like a usb and maybe hdmi port? But batteries seemed still an option too somehow, not sure. Have a look if you are curious but it is a 13 min video, so maybe not your thing to watch.