Super Mario Galaxy 2 Easter Egg - Supermassive Galaxy Infinite 1-ups

Go to the Supermassive Galaxy. This is a very helpful egg if you know how to do it right. You need to go to the 2D planet with three giant Koopa Troopas and the drill power up. Do NOT grab the drill power up. Walk up to a Koopa and press Z and then jump (this is a way of jumping to high places). Be quick, so it doesn't step on you. When you manage to get on top of its shell, Mario will bounce up and down on it like a trampoline. Nothing will happen for the first 8 or so times you bounce, but soon with every touch of his foot on the shell, you'll get infinite 1-Ups. However, the Koopa is walking while you are bouncing on its shell, so make sure you stay on because if Mario's feet touch the ground again it will take another 8 or so times with nothing happening!!!