Beat Story Mode as certain characters.

Character	How to unlock
Gamma's Story	Beat Tsuna's Story
Genkishi's Story	Beat Tsuna's Story
Ginger Bread's Story	Beat Tsuna's Story
Gokudera's Story	Beat Tsuna's Story
King Moska's Story	Beat Tsuna's Story
Ryohei's (10 Years Later) Story	Beat Tsuna's Story
Yamamoto's Story	Beat Tsuna's Story