Major Burrows' vocalizations are provided by Koichi Hayashida.
Burrows is an abnormally large and pudgy, maroon-coloured Undergrunt. He wears a blue spiny shell as a helmet and has light blue eyes that are often dilated when his expression changes. He has long bushy eyebrows (similar to Bowser's) that are white, and has large rounded cheeks. He has a large tannish-coloured belly, and a fleshy coloured tail which is only seen when his lower body is above ground. Sparking his anger causes him to take on a second form where his helmet turns red and his eyes become golden yellow, with no visible pupils. He also seems to have greyish-blue eyelids as seen when defeated (Either that, or the eyes themselves become blank, similar to the Fatty Puffer from Kirby's Return to Dream Land.)
Super Mario Galaxy
Majour Burrows appears in the level "The Dirty Tricks of Major Burrows" where he is attempting to eat a Star Bunny on his planet as Mario makes his way over. Mario has to Ground Pound to send him out of the ground, then Mario Star Spins him and Burrows loses his first life point. After this happens, he gets angry and forgets about the Star Bunny (who escapes), and tries to kill Mario. This part is harder as in a rage, Burrows moves faster on his third (and last) hit point. After a final Ground Pound and Star Spin, Burrows is thrown into the air and defeated, at which point he vanishes. Mario is rewarded with a Power Star.
If a Daredevil Comet lands in the Gusty Garden Galaxy, Mario must battle Major Burrows while having only one life point. Defeating him under this condition will reward Mario with another Power Star. Just like in the original version of his respective mission, Major Burrows starts out ignoring Mario as the plumber makes his way to the planet. However, Mario starts out on the planet itself!
Super Mario Galaxy 2
He is the third boss Mario fights in the Boss Blitz Galaxy, after King Kaliente and before Bouldergeist. The battle is exactly the same, but there is no Star Bunny on the planet, so Burrows is after Mario from the start. There is also no checkpoint at this point.