Walk up and down?
Up and Down? You mean wallclimbing? There is a wallclimbing animation and a wallgrab animation in Catset. I'm not sure what you mean otherwise, sorry.
Game RPG 2D
I'm guessing you're referring to a top-down 2D rpg? As mentioned in the description, this is an asset pack for 2D sidescrollers and platformers. I might not understand what you mean. I'm sorry, but you're going to have to be more specific and explain a bit more if you want me to understand what you mean.