Lego builder Julius von Bronk has created what might be the single most '80s thing known to man: a Lego Game Boy Transformer with a Tetris cartridge Transformer as a sidekick.
The duo are called Domaster (named after the original Game Boy's dot matrix screen) & Tetrawing, and they transform into a badass robot and a bird, respectively. Two Lego AA batteries form Domaster's guns.
Even more impressive: Tetrawing (in cartridge form) actually fits inside the Lego Game Boy's game slot, and the batteries fit in its battery pack.
Check out more shots of the amazing Lego 'bots at Von Bronk's MOCPages account.