Dustforce
 

I picked this game up on Steam over Thanksgiving when it was on sale for $5 (it's $10) regularly, and it's been an awesome game to fill time when I don't have time to get into a bigger game or I'm just bored.

It's a fast paced platformer, where the object is to clean up all the dust you see. You can run on walls/ceilings, double jump, dash, weak attack, strong attack, and do a screen wide ultra attack if you've built up your combo enough.

The game grades you on completion (cleaning up all the dust), and finesse (maintaining a high combo). Getting S ranks fills up a meter that unlocks keys which unlocks new levels.

There's also a time component (trying to go faster), but from what I can tell that's just for rankings.

It's a very difficult game, but one of the coolest features is that it has replays built into it - so after finishing a level you can watch replays of the top people and get ideas to do better.

It also has a very nice soundtrack.

I thought this thread would be a good place to discuss strategies and share our own replay videos if one of us gets a cool run.

Here's an example video of a more difficult level: