This sounds right up my alley for some reason. I was about to start a random game up, so it might as well be this. Let's dig in!
Edit:
It's still saying "Ja / Nein" instead of "Yes / No", I barely noticed : D
Just thought to mention that one in case it's unintentional.
The first key can get stuck multiple times, quite unrealistic. The message should just be left out afterwards.
Also, I named my hero FECES.