Minifigure: The Door to your Imagination

There are two scenes to my build. One is the boys bedroom while he is playing a game, the other is how he imagines his room in the game.  His bed and bedside table turns into a space mining area. His bedside lamp turns into a glowing spacerock. His computer desk turns into a computer which he set up on spacerock. His toybox becomes his supplies box. His lifesize alian model turns into a real life space alien and he turns into a real spaceman. Whatever he does in his bedroom in real life, happens in his imagination in space, in the next room.....