Basically, I'm trying to build: a dual joystick, 14 button Retropie system with a full sized Pi 3B...all "Tetrised" inside a Game Boy Color shell. Here is the front:
The inspiration for this project comes from my first completed build which is pictured below. It's basically what Wermy did in his 2016 GBZ guide but with a GBC shell.
Pi Zero W + 13mm heatsink
Adafruit 2.5" composite screen
Camble's Safe Shutdown v1.2
Adafruit Powerboost 1000c
Adafruit 1200mah LiPo battery
Black Kitsch-Bent D-pad/ABXY buttons/power switch
Bottom half of GBC motherboard for button input + copper tape for X and Y
Two 6x6x7mm clicky switches for LR
Helder's 5v power strip
Helder's surface mount PWM buffer
1" Adafruit speaker
PAM8302 mono 2.5w class D amp
30 AWG for data and 24 AWG for power
So yeah. As it stands now, everything is moving along nicely! Basically all of the hardware does fit inside comfortably after some modification, and I even managed to fit a 3000mah (605085) battery in there.
There are a couple problems that still need to be solved such as the rear button placement and some wiring, but it's only a matter of time before this thing is completed.