Falling Nikochan
You can create charts using your favorite songs.
Falling Nikochan does not require you to download sound sources. It plays sound sources by embedding YouTube, so you can use any music uploaded to YouTube.
In most cases, there are no copyright issues because we do not redistribute sound sources (except for illegal uploads or those that prohibit the use of YouTube embedding).
When you create a chart and upload it to Falling Nikochan's server, a chart ID (6-digit number) is issued.
By sharing the chart ID or chart URL (nikochan.