A Snow Kangaroo is a type of Kangaroo that lives in snowy regions, seen in the first Ty game. They are seen in levels such as Beyond the Black Stump, and Snow Worries. These creatures are very different from regular Kangaroos instead of attacking with its legs, they throw snowballs at their enemies. They are always seen covering their enemies with snow, thus freezing them to death.
Civilian or Enemy?
Though classed as an enemy, they seem more like innocent bystanders, as their snowballs do not damage Ty. While they do emit some smug laughter after hitting him, it seems more like they simply are having a game of fun than being an actual threat. Regardless, Ty can kill them just the same as any other foe.