It was def step 6 I did wrong, cause when I extracted the first time it had another folder above that, and that is what I zipped in the end, instead of zipping credits and game. Cause when you said zip contents inside folder, not folder itself. I was 2 folders above and wasn't sure if you meant the one folder within, or the credits and game inside that. Given your comment here I now see where I went wrong and will try again.