Courage: Went onto Espoir, knowing of the risks. Attacks guy with jewels in guarded room.
Self Sacrifice: Gets self in debt trying to save stranger he met in "other room." Allows his teammates to hold stars before himself.
Ownage/Badass factor: His ability to stick to his morals, his style, his eventual rejection of money.
Outstanding feats: Making it across beam, Taking jewels, surviving.
Hosaka does nothing like what Kaiji does.