Floor that cannot be walked up

I’m trying to make a slide-like level with a floor where you can only go downwards but not up. I’ve already made a slippery floor in the character movement component, but how do you make it so that you cannot go up?

You can set the parameters for Walkable Slope in the Character movement component. See docs here
Another option could be to use physical materials and use friction values. As you say, that you already did a slippery floor, you might have used that already… See docs here

The character wont even walk down, he just slides down without being able to control him. I’ts not what i meant. I wanted to control the character when he slides down.

In Character Movement component, set Air Control to something around 1