Perhaps they could have some sort of rare-drop key that only experienced players would be able to get that opens a new chest in the vault, or maybe even unlocks a new character slot. Because what good players can achieve is limited by only having one chest and character.
for those of you who think that they are squares, not cubes, youre Wrong. they could be cubes just facing the screen perfectly, are you saying that if something is'nt angled off to the side its not 3d??
annother (alsom on kongregate) is exactly the same thing, same upgrade layout, same maker, same idea, but better, belugerin is just trying for more tips and what not 1/5