I visited Hanayashiki Amusement Park in Asakusa in January, 2015
The rides are old, worn out, almost look unsafe, but this being Japan I am sure they are not. Paint is flaking off, the colors already faded. This amusement park has seen better days, but there is still lots of people here, mainly families with small kids. Most of the rides are for kids as well, no room for the large rides for adults here, Hanayashiki is in between the buildings in the middle of Asakusa. You can walk from one end to the other in one minute.