Grid System?
The game gets very difficult very fast in this game. I like a challenge like the next guy but I think the biggest issue is that you must align yourself perfectly to dodge & move things around. I don't like the idea of not being able to push a rock because I'm not dead center with it. Maybe you thought that it would prevent any pushing mistakes. This is why I like the Zelda style, wait a couple of seconds pressing an arrow key then push the rock no matter where you are on the side.