Yakuza 4

Upon completing your first playthrough, the Ultimate Skill missions will be unlocked and available from the Main Menu. Completing all of them will reward you with the “War God Amulet” in Premium Adventure mode and this trophy. Here are videos for the trickier missions:

Brawl 6 - Pickup the Smoke Grenade at the back and throw it at the enemy with a gun for massive damage
Brawl 7 - Use to lockon to opponent and you'll never slip

Trial 6 - Run directly in between Minami and the mic to force him the other way

Trial 10 - x4 (jumping punch) combo works very well in getting the enemies to writhe in pain on the floor, allowing you to use the Arrest HEAT move.