'Project Unity' is 15 fully-functional consoles in one giant box
Constructed by evil genius/mad scientist/hardware hacker Bacteria, Project Unity is a single, unified gaming console that can play Sega Master System, Neo Geo MVS, GameCube, Dreamcast, Saturn, Intellivision, Colecovision, Atari 7800, Turbografx 16, PS1/PS2, Mega Drive, NES, Super NES, Game Boy Advance, Nintendo 64 and Amstrad GX4000 games.
Project Unity's most impressive feature, besides the fact that it works, is that it was constructed entirely out of authentic hardware and does not make use of emulators or combo units like the FC Twin. It also manages to use a single power supply, video output and custom-built controller, regardless of the system selected.
Jump to 09:30 in the video above for a demonstration of this behemoth in action, including the repurposed NES cartridges that contain different circuit boards for each controller type, or start from the beginning for some deliciously chaotic wiring shots.
