Killing Force
Made with Unity.
I made Killing Force in about one month.
It's a 2D run and gun game heavily inspired by the Contra franchise.
My goal was to recreate 8-bit graphics art style with limited colors and era appropriate gameplay. The game can be played with a USB NES controller.
I made all the pixel art and sound.
I also made the soundtrack and others sounds with the limitations of the old hardware (more or less).
The soundtrack only utilizes two square waves, a triangle wave and a noise channel.
The NES also had support for compressed audio samples that were often used for drums, so I used them as well.
Most of the sound effects were made using the noise channel