There are a couple of jumping kicks in Goju Kata (Sanseru and Suparenpei), that could be used as a 'climbing' kick.I remember reading about Funakoshi's training and he had a class of kicks that included using an object to jump off from to kick an opponent. I think it was called a trinity kick, or something along those lines. Specific might be different, but I remember doing the same stuff as a kid playing around.