Unlock the following bonuses from Bob B at Naomi's Place by completing the corresponding challenges:
BONUS - CHALLENGE Amon's Sunglasses - Defeat Amon. Beads of Good Fortune - Complete Challenge Lockers (unlock all one hundred lockers, under and above ground). Dragon Sarashi - Complete Challenge Hostess Maker (complete all hostess side missions for Hostess Maker). Dragon Shirt - Complete Challenge No.1 Hostess Maker (train all hostesses to reach the number one spot). Ebisu Socks - Complete Challenge IF7-R (defeat all enemies). Golden Gun - Complete Challenge Mini-games (complete each mini-game). Hercules Gauntlet - Complete Challenge Modding (make all weapons and gear for both Works Kamiyama shops). Journal fo a Rare Sign Maniac - Complete Challenge Fighter Maker (all apprentices have won the Rookie Tournament). Kokurenkai Belt - Complete all of Akiyama's side missions. Kokurenkai Headband - Complete all of Tanimura's side missions. Kokurenkai Undergarment - Complete all of Saekima's side missions. Limbo 2 - Night of the Limbo - Complete all of Kiryu's side missions. Luck Mallet - Complete Challenge Hostesses (complete all hostess side missions). Lucky Binding - Complete Challenge Dining (order everything on the menu at every restaurant). Muramasa Blade - Complete Challenge Coliseum (win all tournaments). Rage Armor - Complete Challenge Police Scanner (solve cases received on the scanner). Rage Bracelet - Complete Challenge Gang Encounters (defeat all gangs). Rage Talisman - Complete Challenge Friends (become friends with specific people around the city). Sacred Tree Arm Guards - Complete Challenge Master's Helper (complete all of Master's tasks). Sacred Tree Armor - Complete Challenge Saigo's Training (complete all of Saigo's training courses). Sacred Tree Shin Guards - Complete Challenge Nair's Kumite (help Nair reach her objective). Substitude Stone - Complete Challenge Revelations (see all revelations). War God Amulet - Complete Challenge HEAT Action (use all HEAT Actions). War God Talisman - Complete Ultimate Skills at the main menu.