[Glitches] Super Mario Galaxy

Here you post the glitches you know on this game.
I heard about one in Deep Dark Galaxy, that you go to th eunderground area, to catch more coins.
I already forgot how to do that. Can someone upload a video? Because username on wii-records did a 109 score :S I also want to do that.

http://www.youtube.com/watch?v=ykcphwODGCg

That video, and the comments on the video, may help

Not that glitch.
The one you do in rocks and go to underwater, then you can catch some extra coins.

The glitch used to get 107 coins

Check this!

That's how you do OoB. I don't remember that what coins you take, there was vid of 109 coins in the past(or at least those OoB coins), but it's removed. Never tried that myself.

PMniac :

Not that glitch.
The one you do in rocks and go to underwater, then you can catch some extra coins.

some of the comments were talking about how to do that as well

I would like a How to do 109 video =D
username from wii-records told me the following:

It will probably take several hours for you to get 109 coins if you wish to do so. There are six coins you have to get going Out of Bounds (http://www.youtube.com/watch?v=34LdWpNa8zc). You have to get 2 from boxes (near the ship that is not submersed underwater), 2 from jellyfish's and 2 from brick blocks (both near the switch).