We found 2 Reddit comments about Metal Resistance. Here are the top ones, ranked by their Reddit score.
I like how the limited edition is only 44yen more https://www.amazon.co.jp/METAL-RESISTANCE-%E9%80%9A%E5%B8%B8%E7%9B%A4-BABYMETAL/dp/B019BS639I/ref=sr_1_11?ie=UTF8&qid=1487986150&sr=8-11&keywords=babymetal
They still have the standard version with Syncopation though. E.g. Asmart, cdjapan, Amazon and other for sure. Cdjapan and Amazon are sending worldwide without needing Tenso.
I like how the limited edition is only 44yen more
https://www.amazon.co.jp/METAL-RESISTANCE-%E9%80%9A%E5%B8%B8%E7%9B%A4-BABYMETAL/dp/B019BS639I/ref=sr_1_11?ie=UTF8&qid=1487986150&sr=8-11&keywords=babymetal
They still have the standard version with Syncopation though. E.g. Asmart, cdjapan, Amazon and other for sure. Cdjapan and Amazon are sending worldwide without needing Tenso.