Thats tubular, with the p balloons, thats why it was so frickin difficult. In the next board "Way Cool" I was able to fly through it, once again if I recall correctly.
It took some time to get good enough at flying to attempt this, seems like once you were up in the air you had to push "backwards" on the directional controller, in opposition to the direction you were flying, then keep "pumping" it. Make sense? Probably not.