Does anyone know the differences between the Famicom and US releases of the game?

The only thing I noticed was the health/powerup refills of 50 orbs on Famicom versus 30 orbs on US.

Are there any other differences that would make one a preference over the other? More/less health on bosses, faster cutscenes, etc?

The health/powerup refill is the only difference I know of at the moment.