matrixsolver0000: How about questioning his knowledge of the world? Ask him if he knows the population of the world. Ask him if he knows the size of the world. Ask him if he knows what the origin of the world is. Ask him what the year is. Basic things that are usually common knowledge. Perhaps by getting him thinking about basic facts, he will uncover lost memory sections. 
bethlmcconnell: that's a good idea 

matrixsolver0000: Can he alter/distort your physical appearance? How about Laika? Can he change Laika into another breed of dog? 
matrixsolver0000: also, Does he have control over sound? Can he change the sound of the forest into perhaps the sound of a city? Can he make music be heard? Can he transmit a conversation from another part of the world and allow you to hear it? 

bethlmcconnell: I will test sound 
bethlmcconnell: I did not have that on my list. that's a good suggestion.