Remembered my thoughts from 2 years ago..
So what I was thinking was playing as if 2 person tapping and aiming in real time.
Basically saying, as if both player are playing side by side, if one misses the other will also miss, just like normal standard.
If player 1 (RX) misses, player 2 (AP) can't hit the note player 1 missed. Vice versa
While this might cause problem such like what JustABeginner said, connection problem. There is also a way to somewhat fix it, just need a little thinking.
If the above is not possible, then post-gameplay score calculation will replace it
BeaniCraft wrote:
maybe for taiko, one player does the don's, and the other does the ka's.
Something like this is possible