You want to label your game that was made using AI as being made without using AI, because according to your judgement you didn't use it all that much. That's deceptive. Sorry.
"I don’t think pixel art is inferior, but since it’s art made with pixels, it’s more limited, and that makes it harder to have a recognizable style in small works. As sad as that sounds, it’s a reality.
I'm sure I could show you any 48x48 pixel art from anywhere in the world, and you wouldn't be able to tell who made it."
That doesn't make it more acceptable to plagiarize it.