The video game deal of the day over at Amazon today is Super Street Fighter IV Arcade Edition for PC for only $19.99 (that’s 50% off the list price of $39.99).

Note, this sale is valid only for today, Sunday, September 4, 2011, until 11:59PM PST while supplies last.

From the product page:

– New Playable Characters: Four new challengers enter the ring: Yun, Yang, Oni andEvil Ryu.
– Updated Character Balancing: Features all new character balancing, further refininggameplay.
– Replay Follower: Be able to follow up to 5 separate player replays making it easier tofind your favorite players? latest replay.
– My Channel Advanced: Allows players to distribute their replay data to up to 50 players.
– All playable SSFIV characters will be unlocked out of the box, including Yun & Yang,Oni, and Evil Ryu.

Super Street Fighter IV Arcade Edition, brings the ultimate vision of Street Fighter home to the PC in the Summer of 2011 in North America. The follow-up to the critically acclaimed Super Street Fighter IV will further redefine the fighting game genre with classic 2D Street Fighter fighting action, a host of new and returning characters, beefed up online modes, and more. Super Street Fighter IV Arcade Edition features a roster of 39 characters such as Ryu, Chun-li, Juri, El Fuerte, and Rufus, while adding 4 new characters to the roster including classic combatants from previous Street Fighter games like Yun and Yang as well as the all-new Oni. Beyond characters, Super Street Fighter IV Arcade Edition adds all-new balancing as well as an enhanced Replay Channel.