As a general rule of thumb, I think it is usually a bad idea to market your work using memes and/or anything that others might find offensive. That most definitely includes Hitler & Nazis.
Now, this is not to say that anything using memes/offensive humor will fall flat. Quite the contrary.
Take, for example, a post from the official Jimmy John's twitter account:
Which draws on the very popular "
You VS the Guy She Told You Not to Worry About" meme.
It's a funny & silly ad. It's also kind of endearing and adorable to think of yourself as a loser sandwich that doesn't quite measure up to the more impressive sandwich from Jimmy Johns.
But, to be perfectly honest, I think that when you use memes, you date yourself and sometimes risk alienating people who might not be familiar with the meme or the joke. And also - I know people who are actually turned off by certain memes and more likely to dismiss or dislike a product if memes are used.
And as for something that is offensive & shocking, well. There have been
offensive advertisements and marketing campaigns since the dawn of time.
But does that mean we should use them? I don't think so- I think it is probably wise to avoid offending others if you can manage, especially when trying to promote something that you created. That's not to say that we should censor everything, especially when it comes to games with disturbing & adult content. I have played games with material that many would find messed up or disturbing - and am not advocating we change those or anything like that. I'm more talking about how we market and advertise to others. Why risk turning people off to what you've made before they've ever even played it?
And if you do have solid reasoning behind creating a campaign or ad that is offensive, I would just caution you to think long and hard about the repercussions or backlash that might follow. Unfortunately, we live in a world in which online "witch hunts" (of a sort) are a real thing. There are countless examples & varying scales of how mean & intense people can get online.
And while the masses might not get too upset over a game trailer for an indie game, but it is something to consider when creating things that could be offensive to others.
I would also like to go a step further and critique your video / concept. It seems like you are aiming for humor - which is can be great approach to drawing people in! Humor is a wonderful way to disarm others, and make whatever you are promoting memorable without being to "sales-y" or coming off as self-promotional/"hey look at our game and how wonderful it is buy it now!!!".
Two of my favorite illustrators,
Gemma Correll and
Andy J. Miller, are the masters of using humor in their work. Gemma Correll creates these delightful little pieces, that she gives away for free, which are hilarious. She, in return, gains a lot of attention for her work, and also jobs because of it. Andy J Miller is a hilarious and wonderful human being, and his ability to speak and make others laugh and smile has gained him & his work quite a bit of attention.
So, while I think humor is a good approach, maybe you are missing the mark here with the video you've created. I would encourage you to explore other ways of creating a humorous or funny video trailer that would not be offensive. And if you are unsure where to start, it might be worth looking at what
other gaming companies have done in the past to use as inspiration.