The techniques used by the Stasi were very innovative (in an evil way), for example they would break into people's homes only to move their furniture around to make the victim doubt their basic reality.
They were really good at psychological torture, so they could get their hands dirty a little less than other secret police.
This is exactly the same kit, it's great! Mine uses my original GB shell because it was already pretty beat up and the screen had unfixable lines.
Now I play it every day.
When you want some mayo just suckle the teat