Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Blue Orbs can be used in Devil May Cry 5 to increase your maximum health gauge by one segment.
Note: The maximum number of Blue Orbs you can acquire thruogh gameplay is 14. Purchasing additional Blue Orbs above this number will not have any effect.