The pixel graphics are very very pretty! The visuals are very cohesive.

The night time level was difficult as you couldn't really see the bullets, and they sometimes disappeared mid-flight (scary!). 

Simple, but it held my attention.  I grew up playing Double Dragon so this kinda took me back to those old games.  I appreciated the art and how you managed the scope of the game.  Great job.  It was a little repetitive, but you did mix things up with the night drop and the logs on the tracks.

Great entry! Enjoyed the story and gameplay. Even if it was repetitive, you did add a variation with the log and would have been nice to have another various for the last level.
As a side note, I was going to say that the Wushu (Kung Fu), arrive way later (almost 50 years later), and that at the time the chinese martial art (or Zhongguo wushu) was called "Chinese boxing". But after searching more because thanks to your game, I learn that Wushu actually just means "Martial Art", literally xD and that the term has then be use for the name of the actual moder sport combat we generally know as Kung Fu.

I made a game about the Taiping revolution, which took place half a century before the event in your game, and I'm fascinated (and horrified) by the impact of European greed on 19th-century Chinese lands :') 

Edit: I forgot to mention how great the art was :o

Loved the writing and the art direction.

The gameplay got really repetitive after a while but the music and the historical accuracy were on point.