My subconcious, in the game, mind you, would probably look like a huge forest, with waterfalls, hills, meadows, caves and a sky populated with clouds, all colored with a bright palette. At night, the world just becomes darker: the level doesnt change in any specific way, it just looks more intimidating and omnious.
It'd probably be almost exclusively platforming and puzzles, since i feel no need to argue or fight anyone, im a peaceful guy. However, there would be atleast one enemy in the game, a giant dog, sleeping in a cave. Waking this dog would result in a game over, and youd have to restart the level. This symbolizes the fact that i fear that those i love will get mad at me, or in any way affect me negatively. I love dogs, see.
My subconcious, as a character, would have a reasonably troubled past, although he is still a funny guy, a nice guy, wise, a little bit nervous and/or selfconcious, and spontaneus, curious and interested in everything. I imagine him as a buddhist monk. Amituofo!
(A lot of people in this thread seem too preoccupied to make themselves seem so deep and troubled, they forget to create their subconcious with all parts of themselves. Of course, we are all troubled and we all have bad days, bad personality traits and bad experiences or habits. But we seem to forget that there really are no sides of us, and that all these parts come together to form ourselves, not just create a mirror world. You know you dont behave like an angel or a demon exclusively: there's so many aspects that affect how we behave.)
This, i would like to say, but i feel too afraid to say so because someone might become upset or say i dont know them or dont understand. So, im not going to say it.