There was a Japan-only Game Boy Light that was the form factor of the Game Boy Pocket but with an electroluminescent display. I have one, and to this day it's o

There was a Japan-only Game Boy Light that was the form factor of the Game Boy Pocket but with an electroluminescent display. I have one, and to this day it's one of my favorite handhelds. It males grayscale games are absolutely gorgeous in the dark. Surprisingly, it has a very decent battery life - 20 hours without the backlight, 12 with.