Samurai Aces III: Sengoku Cannon

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Fire the Cannon Shot!
It's the evolution of eccentric Japanese-style shooter!

Sengoku Cannon is a horizontal-scrolling shooter game that first appeared in 2005.

The most unique feature is
that the score multiplier jumps
when you take down an enemy with the Cannon Shot.

Try an exciting score attack!

Also, the storyline is dramatic for each character.

You can set the difficulty level, life, number of continues, controls, and more.

In PRACTICE mode, you can choose the difficulty and stage.
It supports both beginners and experts.

In addition, now we have online rankings!
Be the world's best Samurai Ace!

Characters:

Save the princess "Masamitsu"
Rampaging maiden "Koyori"
One-eyed samurai "Ayin"
Wandering girl "Mizuka"
Turbo monk "Tengai"
Blonde ninja girl "Junis"

About planes:

Power up with "P" items.
Get bombs with the "B" item to wipe out enemy bullets and evade your foes!
Master the "Charge Shot" and the "Cannon Shot"!

Options:

Select the screen filter from the normal +2 version.
You can set the number of lives from 1 to 9 and the number of continues from 0 to unlimited.
Assign "Shot", "Auto Shot" and "Bomb" in the key configuration.

Score Attack:

This is a new feature that has a very severe mode with a fixed difficulty level and number of lives.
Compete in high scores and score attacks against players from all over the world!
Online rankings can be viewed from the options menu.