Link to your Game Design Doc on Google Drive.
https://docs.google.com/document/d/1rXBl_YoNPoCxoCTSsZGE3Cl4mQ-8J_uWMBKgQJSdVrI/edit?usp=sharing

Have you checked that your GDD is publicly accessible ?
Yes

Is your game set to public on itch.io so we can see it?
Yes

Summarise your game!
You play an alien parasite sent for future invasion.
Your are the weapon, controlling the brain of humans, composing an ever-growing horde !
Every person you touch falls under your control, expanding your army. The more you gather, the stronger you become!
Horde gain updates, a charge, a surge , a split skill.
And you can use a gamepad (that's better).

Please explain how your game fits the theme:
The main character is a horde controlled by the player. The hole horde is in it-self a weapon and each member can be sent to attack enemy like a samouraï use his blade.

You are the weapon, not as a lone fighter, but as a growing horde. Every person you touch becomes part of your army, turning the crowd itself into a weapon. Each member can be sent to attack enemy like a samouraï using his blade.