Very, very cool
For all the people who don't get it, here's my interpretation: It seems that the character, Pete, is in a coma and this is his "dream". To me, Bird seems to possibly be a friend from outside, maybe a doctor or a close person. That big fat thing in the sky seems to be death trying to get Pete not to ring the dore bell while Bird is trying to get him out of the coma. At the end, when he rings the bell, it says his eyes are opening, as if he's coming out of the coma. That's just my interpretation; it could mean different things to different people. I think it was a really beautiful game.