Here is how the developer describes Dustforce:
Clean up the world with style! As an acrobatic janitor, you are an adept force against dust and disorder. Leap and dash off walls and ceilings, and deftly traverse precarious environments. Cleanse each level swiftly and thoroughly to achieve mastery in this 2D sweep-’em-up platformer.
You can download Dustforce now for $9.99 on the Xbox Marketplace.
Source: Major Nelson