Super Mario Galaxy 2 - Grandmaster Galaxy - "The Perfect Run"

SPOILERS This video contains the last level of Super Mario Galaxy 2. Do not watch if you don't want to know what happens.
This is the final star in Super Mario Galaxy 2. The video is called "The Perfect Run" because that is the name of the star. This run doesn't do anything very flashy. It's just a straight run through of the level. I just wanted to upload this to see if uploading a video without compressing it is worth the wait. For the record, I died 67 times
To get to this level:
Collect 240 stars (120 normal, 120 green) to open Grandmaster Galaxy.
Beat "The Ultimate Test" and collect the Comet Medal.
Deposit 9999 star bits with the Banktoad.
The level will appear without any notice or fanfare. If you meet the above requirements, the star will be there when you go to the galaxy on the world map.
What makes this different from "The Ultimate Test" is:
The first part of the level was made harder (those flying green things replace the paragoombas)
You only have one hit point. This also results in having to do the second half of the level with the Cloud powerup, which can be a good or bad thing.
No midpoint flags.

[@poshko41]

Indulging in shortcuts on this star should NEVER be called "cheap." You were merely accepting some of the few olive branches they had the courtesy to dangle.
You've definitely given me some good pointers.

[@SomersaultJustice]

@jianjunxu When I played the game again to unlock all the Luigi ghosts, I actually did save all three clouds for the last part. It takes a lot of luck on that floating cloud part. Unfortunately I wasn't recording it.

[@SomersaultJustice]

@jianjunxu That would be pretty insane. That's like TAS level right there.