My cake will be a replica of this. see how it's inwardly slanted on the bottom? Will this matter? I am assuming no but I need to make sure.
The cake itself will most likely start as a 10" square, 4" high, and will not have anything stacked on it except perhaps a control which would go in the center.
For the record, I only make WASC cakes and it will be fondant covered.
sorry can't help you on the support questions. Just had to comment on how much I loved this game when I was younger. Donkey Kong anyone? LOl
I'm going to assume that your 10" square that is 4" high will have two layers inside of it. The bottom half of the cake, which is the part that slopes inwardly, just carve like it looks and frost or put some filling on the top. Then place a 10" square cake board on top of that, and place the second layer of the cake on top of the board. The internal cake board should keep the top half supported around the edges.
Hope that helps!
perfect logic, thanks SO much!