I think that the current replay system needs a Seek Bar (with a timeline where the player has 300's/100's/50's/misses), ability to view Hidden plays without hidden (local only), and a playback speed slider from 0.1x to 2.0x.
Also have a toggle for the score meter and k1/k2/m1/m2 keypress count for replays.
Quick example of what it could look like.
Also have a toggle for the score meter and k1/k2/m1/m2 keypress count for replays.
Quick example of what it could look like.