Waise Chow, one of the bosses, is encountered at the end of The Hong Kong Massacre's first chapter. This page contains tips for defeating Waise Chow.
This is a mandatory boss fight that takes place after you complete all missions of the first chapter - Four Days Earlier.
If you can, take a rifle with you. Besides that, you should also try to get 10 Clip Size and Extra Clip upgrades for this weapon.
The location where you face the boss is vertical. The main hero and Chow walk in separate corridors.
Shoot the boss whenever he gets close to any of the windows or other destructible parts of the wall. You don't have to use the slowmotion, but it can be helpful. Your character dies after one hit. Chow, on the other hand, has a health bar.
The boss has, to some extent, similar moves as your character. You don't have to keep moving up the screen and chase Chow. Try to stop in one spot for longer and look for a chance to shoot the boss while moving sideways.
You will encounter regular enemies, too. Try to shoot them before they manage to attack you. If your ammo is almost depleted, think about picking up a weapon dropped by one of the enemies. Sadly, everyone here is carrying the weakest weapon - a pistol.
Defeat Waise Chow to unlock The boss has been fired trophy/achievement. Besides that, you will also receive 1 star.