This is so cool! A great PS1 era trope collection, an all in one kinda package! The visuals, the camerawork, the UI elements - everything is very nostalgic and nice looking! Even the filmgrain added something! You have to continue developing this, for the love of everything :)
Once again, i reaaaally like that MGS dialogue scene, the animations, the composition - great stuff! But as someone else noticed - if you could get better performance from your actors that would be great, some things are better left in the past. There's a lot of great actors who would do great work with what you are doing here.
Please finish this, the intro cinematic alone is worth it :)