>>583204If you are talking about your own HP there's no such thing as it's 1-hit KO for the player. For the bosses/spell cards the boss HP bar is at the top of the screen, with the name of the boss and spell card (if applicable)
As to why I like Touhou it's because of the music and the programming of the spell cards, plus focus mode.
Anyways here have a wallpaper.