Grasshopper have revealed a new character and 2 new enemies, the Samurai and Ninja, plus new artwork of Mondo, Scarlett and Betty. Enemies you defeat drop items like, Health Gem which replenshices your stamina/health, Moon Crystal which can be used to upgrade your skills etc.
Hamadayama is a 63 year old Yakuza boss. He appears in the episode "tiger disappeared into the darkness." The influence of dark matter makes the Tiger tattoo on his back him to go wild.