anyone know how to make these moving backgrounds

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

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

i kin da hate it butttttttttttttttttttttttttttttttttttttttttt ye

horizon

g

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new leak Are these the new Experimental mabbi Sprites? Or is this ferocious FOUR im CONFUSED HOLY SHIT