With algorithms made by humans to make the composites reasonable. And, yes there are such games, I just posted screenshots of it since people had a lot of freedom to make their own aliens there that doesn't look like what you normally expect.

That game was made by humans coding in a lot of different kinds of movements for a lot of different kinds of shapes. Those shapes and movements doesn't exist in reality, they imagined something completely alien and did it and made it able to move.

> Humans imagination can only split, deform and glue. Computer are perfectly capable of doing that.

Humans doesn't split deform and glue randomly, they do it in interesting ways to build towards things that are totally different from the starting point.

What current AI can't do is exactly that, build towards something novel. They just glue together things randomly, or they compose them in similar ways as existing things. They aren't capable of iterating towards something novel and cool like humans as they are today.

For example, lets say a human sculpts an entirely new shape using a leathery substance, that fits in what I described above, you would just say "Oh, but that is just a known thing in a new shape, not creative, just using old things!!!". That is just a nonsense argument, not sure what you are trying to say with that, I assumed you had a reasonable definition that didn't include everything, but as it were you did include everything into it making your whole argument complete void.