frankly you need to tell us that we have to hold X in order to use the directional controls, and in general all of the controls besides movement and mining are bizarre. hold ctrl V and then press Z or X to load a game???? what difference does z or x there make????
i can understand if this is perfectly playable for you because you've made it, or it may not be too difficult to get a grasp of, but it just doesnt make any sense at all on the first impression so i think you at least need to explain the controls better in the description even if you dont edit the game significantly