Board Thread:Question and Answer/@comment-78.173.28.115-20141003201035/@comment-25408031-20141007102218

when you fill them up (yopu have a chance of filling up 1/4 of one heart when you kill an AW) when theyre filled up, the next time you defeat the AW, the recieve box turns red, and you are gauranteed one copy of the AW