Based on the 7/23 dev stream, it sounds like pressing right and special will pull Gouie to the left, and launch him to the right on release. This seems counter intuitive to me. I feel like Gouie the character should move in the direction I have aimed the stick, and launch in the opposite direction.
Full disclosure, I did not try him in the goo room. I am going off gut feeling.

Let’s try it first?

any controls they do will be inverted on sling 2, so I don’t think this really matters. It’s probably gonna feel weird for 1 game, you’ll sd due to it in the third game you play, and then it will be fine