Japanese Spiderman

This film is 24 minutes long, I watched a low quality reupload of it on youtube, however since it is in Japanese with no English subtitle option, I obviously had a hard time understanding it. I also believe it ties into a TV Show of the same name that I have not watched, meaning regardless of the language barrier, the plot doesn't make any sense to me either. The film looks like it was made on the budget of a Tesco meal deal, and it has not aged well at all, but the music is cool and so is the transformer robot thing. Still somehow more of an enjoyable watch than some modern MCU films. If I was alive in 70s Japan I would've thought this was the coolest thing ever.