24 Caret Games' reverse rhythm-shooter Retro/Grade is coming to Steam on March 20th, offering up exclusive support for PlayStation 3, Xbox 360, and Wii guitar controllers.

The port otherwise boasts all of the features that made the original PS3 release such a standout, including a broad selection of challenge levels and difficulty settings that range from "doable" to "ridiculously challenging." Seriously, don't underestimate the hardest difficulty setting. It will humble you.

It's worth noting that the PS3 version of Retro/Grade is currently on sale for $3.49, or $2.44 if you're a PlayStation Plus member. It's definitely worth the cash -- I really enjoyed the time I spent with the game, and it easily ranked among my favorite PlayStation Network releases of last year.

[via Joystiq]