Eclipse Specters Game Concept

I studied Gamification Concept in ITE, and I've learned on how to create ideas and concepts of a game. This game's theme was horror and Sci-Fi theme and its genre was Top-Down Shooter. The goal is to eliminate every target and reach the end. My concept for the actual goal of this was to go through a lot of levels, unlock special abilities and gears and fight different kinds of bosses if this game was fully developed.

To play the game: https://akmalsarifudin.itch.io/eclipse-specters-demo

To watch the trailer I've made: https://www.youtube.com/watch?v=-a9pWi7fZ0k