As we know your life stops at 20 hearts, but what if we could go past that? well thats what I want to accomplish. Simply putting more hearts would be one way but the screen may clutter up, the way I recomend is to have the hearts change colors
you have a max of 420 health so one of your hearts would be a diffrent color (blue, purple, yellow)
the diffrent color hearts would drain before the red ones, i think the colored hearts should slowly shrink into the center of the original hearts.
just a suggestion but tell me what you think.