What the...?!
I don't cheat. First, you can see the notes with Hidden+Flashlight in Catch the Beat, though just for a split second. Second, look at my play counts.
720 plays - Hatsune Miku - Hatsune Miku no Shoushitsu [Uninstall]
300 plays - IOSYS - Marisa wa Taihen na Kanbu de Tomatte Ikimashita [Love]
300 plays - IOSYS - Marisa wa Taihen na Mono wo Nusunde Ikimashita [Hard]
In almost all cases, these amounts of plays are enough to memorize a map, and then FC it with Flashlight or Hidden+Flashlight in Catch the Beat.
Also, IIRC, ranks in Catch the Beat are based off of accuracy alone...it seems to be that anything 98.00% and above is an S. (Given that it's been this way all this time I'd assume it's intentional...)

I don't cheat. First, you can see the notes with Hidden+Flashlight in Catch the Beat, though just for a split second. Second, look at my play counts.
720 plays - Hatsune Miku - Hatsune Miku no Shoushitsu [Uninstall]
300 plays - IOSYS - Marisa wa Taihen na Kanbu de Tomatte Ikimashita [Love]
300 plays - IOSYS - Marisa wa Taihen na Mono wo Nusunde Ikimashita [Hard]
In almost all cases, these amounts of plays are enough to memorize a map, and then FC it with Flashlight or Hidden+Flashlight in Catch the Beat.

Also, IIRC, ranks in Catch the Beat are based off of accuracy alone...it seems to be that anything 98.00% and above is an S. (Given that it's been this way all this time I'd assume it's intentional...)