Judo Boy and his adictive theme tune

I just stumbled across the opening for the wonderfully titles anime series, Judo Boy, and oh my god does this get stuck in your head! There doesn't seem to be an English dub of it anywhere I can find and I'm not sure if there is one, so I don't know much about this show at all, but it does seem to have been translated into Spanish if that helps anyone. It's pretty impressive for a foreign language theme song to get so stuck in your head and this one really does. The amount of repetition in it is pretty comical, I'm sure they could have trimmed this to a lean 30 seconds! All I get stuck in my head is the tune and the word 'boy', which is repeated again and again. It goes something like this:

Da da BOY, da dada da da da BOY, da dada da daaaaaa!
Da da BOY, da dada da da da BOY, da dada da daaaaaa!
Da da BOY, da dada da da da BOY, da dada da daaaaaa!
Da da BOY, da dada da da da BOY, da dada da daaaaaa! (repeat forever)

I also love the title, Judo Boy. There's something wonderfully blunt and to the point about it.

Prepare to get this stuck in your head!