VERY IMPORTANT NOTICE
If you are planning on using the Docomo Bike Share program monthly service in more than one city you must cancel your membership, then re-register a new account in the next city you plan on using the Docomo Bikes. You can technically log into the Docomo Bike Share program in different cities throughout Japan, but you will also get charged a fee each time you check out a bike. The fee is around 165 Yen, which can really add up. I made the mistake of registering in Osaka and then going to Tokyo while using the same login from Osaka, I ended up racking up over $120 USD in fees over the span of two months before I noticed the charges. It is my own fault and I own up to it, hopefully you can learn from my mistakes.