Way to go finding all 12! It's not easy given so little instruction haha. So with the super jump, after you get a golden potato, it changes the properties of the jump (usually making it just high enough to get back to the ssurface with sometimes other things happening.
For the wall clipping, it's something I didn't have time to fix as I one manned this project. But essentially what should happen is you dig down 5 or 6 spaces, super jump back up and dog 10 to 12 in an adjacent line. Making a stair case of sorts. It was supposed to add another element of strategy but needs a lot of work.
Thanks for playing long enough to get all 12 golden potatoes!