Yakuza 4

You'll be playing as Masoyoshi Tanimura in Part 3.

Chapter 1 - 4 New Substories
Chapter 2 - 8 New Substories
Chapter 3 - No Substories
Chapter 4 - 4 New Substories
Chapter 1-3 are again very straightforward so a walkthrough shouldn't be required.

Chase battle: Avoid obstacles and keep on the tail of Sugiuchi's speedboat, press to fight at him when the reticule turns red to prevent him from firing back and slowing you down. When you're in close proximity, press to ram until he decides to pull over.

Boss battle: Sugiuchi is a martial arts expert like Tanimura and tends to utilize the same Parry move. Unleash Tanimura's standard combos and Combo Heat actions, make sure you get the QTEs right to inflict maximum damage.