Thank you!

I hope I can improve fast.
If I get better I will post new scores here again.
I should take your advice to my heart and play basic songs more. But simple songs are not much fun to play, so I always play the ones I can just barely clear or still cannot clear... maybe that's the reason why I cannot improve in pop'n music

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It's a pity you cannot use e-amuse!
With an id you can also look up person's page, not only add a friend/rival. You add an id at the end of the link
https://www.ea-pass.konami.jp/conten...ay_top.do?fid= (it should work without logging in). So if some of your friends can use e-amusement and you know their id, you can look up their game progress (if their profile is made public of course).