500 is the max amount of HP still, let me check for the destroyer emblem.
edit: just checked, put the wrong ID for the pedestal, I'm going to fix this right now.
This is now fixed in 2.3.1.
for the HP the more hidden life ups are in the main world not in the body, you might have missed one in the heavens or in the caverns. The game is a bit annoying to 100% because the minimap was a very last minute addition.
Thanks for doing 100%!!