Well I've been wondering about this for a long time and I've noticed this in the games. Well the hearts shape. The first one is pink and sparkly and is actually shaped like a heart and the other one is a ball of shinning light. Does square enix keep changing the design or do they each represent something? I'm thinking that the shinning ball of light heart is a heart of pure light and the one actually shaped like a heart is normal. Idk What do you think?