The Punisher: The Untold Story of an 80's Cult Classic.
Just some random things I noticed from watching the movie again.
In the opening scene right before the goon gets kicked over the railing, I swear there's a skull on the post of the bannister.

In the restaurant scene, notice the swastika motif on the floor. I'm sure they're meant to be Buddhist swastikas, the Japanese word is "manji," but still something worth mentioning.

Right after Mr. P drops Shake off at the fun house, it looks like camera equipment is reflected on the motorcycle. It's kinda hard to see with my sucky screencaps, but who doesn't love a continuity error every now and then?
