anyone know how to make these moving backgrounds

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One day I might just disappear out of nowhere from gamejolt. Dont know when dont know why

3D BF because I needed to make a 3D BF for Diamond Edition

i kin da hate it butttttttttttttttttttttttttttttttttttttttttt ye

i don't know anymore

t

my favorite video

This took so long so god help me.

Okay