actully,i just noticed something.it has to do with the name.you see how whenever they say revolution they show a sign with a bar and a circle starting after it and ending on the other side?it looks like a power on button,but it's actually a revolution,as in 360° revolution around itself.get it?it's both supposed to mean recolution as in something new,but also as in round space,like space all around you.the metrid environment reflected the space of the room the player was in.i think that's what they mean by making your own games.see the bit with the record button?i thing it recognises space in some way,and translates that into 3d environmens?i don't know.
the mario and metroid models looked like crap though,so it could be fake.BUT,if it does reflect the players environment,it would make sense for the models to reflect a more realistic body size.i mean,mario looked as tall as luigi,and samus was pretty smallish i think