For our game. We tried to combine Patapon and Necrodancer together since they are the rhythm games we like most. It does not turn out very well (well I still love it) as you need to attack and move at the same time which is quite hard.
We tried to use another four keys to do an attack and tried to let only the attack need to follow the beat, but the movement is free, but neither works well, then we choose the current controls. If you have any suggestions about it let me know!
Also, share your rhythm game and I'll give you feedback too!!
https://flavedogame.itch.io/rhythm