I wanna thanks Cubeface and his tutorial who got me to this point.

For some reasons i sometimes got black opaque "walls" (for exemple after the bridge in the Prajigar Mine") if you can even call them that. I guess it was something with my graphics quality. i'll try to remove them for next attempts.

If the game audio lowers at some times it's just because i yelled at some times so i lowered the sound to not break any ears :)