Yakuza 2

Easy mode:
Die twice during game play.

Hard mode:
Successfully complete the game under the Normal difficulty setting.

EX Hard mode:
Successfully complete the game under the hard difficulty setting.

2 million yen bonus:
Successfully complete the game under the easy difficulty setting with no deaths.

3 million yen bonus:
Successfully complete the game under the normal, hard, or EX hard difficulty setting with no deaths.

Dragon Tonfar Baton:
Win all battles at the Battle Arena.

Dragon's Cloth:
Complete the food and alcohol list by eating and drinking everything listed.

Haruka's Chocolate:
Have a saved game file from the original Yakuza on your memory card.
.

Haruka's First Aid Kit:
Have a saved game file from the original Yakuza on your memory card.

Haruka's Necklace:
Have a saved game file from the original Yakuza on your memory card.

Haruka's Pearls/Beads:
Have a saved game file from the original Yakuza on your memory card.

Haruka's Talisman:
Have a saved game file from the original Yakuza on your memory card.

Knowledge of the Fighting God:
Complete the Heat Actions list.

Photon Blade RG:
successfully complete all side quests.