What makes it extra hard is the delay before the ships starts to move. You almost have to know the order these walls come in so you can start moving a certain direction before they are visible. This is only if you move very fast, of course.
You can't always go in high speeds as the ship doesn't move fast enough to avoid the walls, not even if you know what's coming.
First stage was overkill as it was pretty easy compared to the other ones.