Hmm, lets see, it may be whatever 'A and B' end up being on keyboard from default controls to. Default, that is A as Jump and B as 'use item' I believe, so try doing the Konami code(keyboard arrows or W, A, S, D as up, left, down, right) and the keys you have 'jump' and 'use item' as A and B.

Did you ever figure it out? I’m on a deck and I can’t get it to work. I use to use the code on the Xbox version but it just won’t work on the deck.