A DMGC is a fusion between an original Game Boy and a Game Boy Color, meaning it is capable of playing both Game Boy and Color games.
To build it, I use new PCBs designed by BucketMouseBite. The electronic circuit has been completely upgraded: optimized power consumption, increased battery life, improved sound quality...
Building it requires soldering new components and harvesting irreplaceable parts from a GB and a GBC, such as the latter's CPU.
The screen is an IPS OSD Q5 Pro, one of the best for GBC games. All Game Boy features, including the Link port, are of course preserved.