It doesn't matter, bro. You just need to flip one of the magnets. It doesn't matter which magnet.
The reason why the magnets repel each other is because you have the same polarity facing each other.
That's probably it then but I have no way of flipping it unless I break it apart from the helmet.
I bet if you turn the helmet upside down, the helmet will stick to his head.
I just tried that and it didn't work. I think the notch of the head is too far from the magnet in the helmet.
If the helmet does not allow you to flip the magnet yourself, then I'd send back the helmet. They should give you in return another helmet with the magnet in the opposite orientation then your original. If they just give you another helmet with the magnet in the same orientation as your original, then you'll have the same problem.
No, looks like the magnet is glued on to the inside of the helmet. Taking that out will probably break the helmet. I did a quick test with a screwdriver and both the helmet and the head is attracting to the screwdriver tip. According to an user in another forum, he indicated that only his helmet is attracting to a screwdriver. So that means, the magnet in the head is reversed. Which also means it'll be impossible for me to flip the magnet in the head.
Yup, a Kotobukiya rep in another forum advised me to send an email to KotoUS and he will try to remedy this. Hopefully sooner than later.