My Mom is obsessed with hello kitty so when where were researching things to do in Tokyo she knew there was a Hello Kitty World also know as  Sanrio Puroland . She wanted to go so we did. I was fun but it's not something I would likely do again. ... like ever. With that said if you go, go durning the week. It's cheaper and less crowded. We went on a Saturday and it was real busy. They didn't really sell any special merchandise, but my mom did manage to bring home one help kitty cups. Yup, if you've come over to my home, and my mom likes you she will serve you a drink in a hello kitty cup.