how? they are just arrow keys and X and Z those are the simplest and most easy to understand controls I have ever used before
if you find them difficult to use then dats tuff
its not that big of a change really, wasd and arrow keys are almost the same thing but WASD keys are mostly used for fps and third person games, if A and D were used instead of the arrow keys it would be bad controls because you have to use the Z and X keys which would be uncomfortable to use but the arrow keys work perfectly on this game because you use your left hand for the arrow keys and your right hand for the Z and X keys