Kung Fury (2015)
"In 1985, Kung Fury, the toughest martial artist cop in Miami, goes back in time to kill the worst criminal of all time - kung fuhrer Hitler."
Holy shitballs this 30min movie was a total blast.
It's like a really cheesy 80's action flick with lots of video game influences.
I wish I could tell more, but the less you know the more fun it is.
Edit: You can watch it here for free
https://www.youtube.com/watch?v=bS5P_LAqiVg