Yes i suppose it was very easy. Part 3 he had enough and sliced Hitler in half. He's glad that's over. But i really wanted part 4. All teh parts were really funny. Part 4 is like Hitler is still dead but it turns out to be idk XD but thats why he's dead. We had no ideas for part 4.
Not to sure if I can sell it being fan art and all but why don't you just save a copy of it and print it out your self. I'll probably make a new one soon just because they keep coming back to it and I think I will too. After all this was so much fun.
I'm sure they wanted to do something really epic with the backgrounds in there video's but they were just starting out and they only had so much money. But they are getting bigger and Bigger and BIGGER. So things can only get more epic from here.