The correct answers to these open questions are the following.
Who is the main character?
The main character is Nazi leader Adolph Hitler.
What mask is there?
It is Adolph Hitler's mask.
What weapon do you use?
It is the Oz weapon. Some soldiers that are marching are carrying rifles.
What does the weapon symbolize?
Symbolize death.
How are the soldiers presented?
Soldiers are presented like robots, like machines that only listen to the orders of their leaders and proceed automatically.
Could such a sketch circulate in Nazi Germany?
No, never. Nazi Germany was an absolutist and authoritarian government ruled by authoritarian people. Indeed, Adolph Hitler was a dictator. In this kind of government, there was no freedom of the press. People could not express critics about the government or its rulers. If they dare to do so, they were severely punished.
Compare the cartoons and discover their common sides.
The common sides of the cartoons are that both refer to the authoritarian governments of the Nazi party, they are related to dictator Adolph Hitler and the way people used his presence or image to lead and move the masses, to convince German people, and to lead the powerful German Army.