Lovely game! You are giving me so much inspiration with game development. If I may ask... how did you apply the marmitoTH's PS1 Shader?
Btw hope to see more!!!
Thanks for the kind words! I actually use some of the shaders here: https://github.com/MenacingMecha/godot-psx-style-demo but any godot shader can be applied in a similar way. Copy the shader code you want to use, then create a new material godot. Right click in the the FileSystem, select "new resource, then select "ShaderMaterial." ,
Click on your newly created material, then click on the "Shader" drop down on the right and select "New Shader"
From there, paste your code in the box.
This should create an "Albedo Tex" box on the right. Select whichever texture you used for your model, and drag it into the box.
Make a new godot scene with whichever model you want to use, and drag on the material you just created.
It's quite a few steps, but feel free to reach out to me on twitter or discord if you have any questions !