Dustforce

Dustforce is a precision platformer.
The movement system might feel difficulty to grasp at first, but put enough hours in and it develops like a music rhythm.
Like an instrument in a play, it's not about making random noise, but following a beautiful composition.
The stage dictates how you play, and your inputs are the tempo, the more you master the movement the faster you'll play.
The true masters make it look easy, but Dustforce is about reaching your true cleaning potential and sloppy play will not be rewarded.
Also, it's difficulty contrasts wonderfully with it's serene presentation, making even the hardest stage a joy to replay.
Overall, I quite like Dustforce. It's a true refined gem.

You can get the game DRM-free here.
Or here.