Grats on the game Roman - It's quite fun, though I'd like to suggest a couple of improvements.
I think there should be an option to play through the whole song without getting knocked out.. It would make 2 player battles more fun.
Also, there shouldn't be any energy drain when no notes are arriving - too often we were knocked out for no fault of our own. I've been playing this online multiplayer on C64cade - the lag doesn't help for this type of game, but it lets you play online 2 player.
One bug I found is P1 and P2 labels above the scores are the wrong way around. Player 2 wins at the end is correct, but their score was labelled P1 in game.
Overall it's really good, and great to finally have a good rhythm game.