Yes and I am happy that you finished it. For not finished *mindblowing spoilers* The journey represents life, where we loose people for better or worse (archenemy or the best friend) and it changes us (power ups). The wall represents the end point, when we can return to our past (back in the level and reread the messages) or wait inevitable death (when the song ends, your characters will die, even if you chilled just at right side wall, not move at all, keeping status quo). During the road you must decide if it is easier to be just on your own OR to put an effort to keep somebody until the end. Not your words, but actions will speak.