Owners of Super Street Fighter IV or Super Street Fighter IV: Arcade Edition can now upgrade to Ultra Street Fighter IV on Xbox 360 or PlayStation 3.

The $14.99 upgrade is a one-time digital download that introduces new fighters Poison, Hugo, Elena, Rolento and Decapre, along with six new environments, new modes, and brand new gameplay balance tweaks in accordance with player feedback.

You can also opt to pick up the full, definitive retail edition, as well as the digital PSN edition, that includes all previously released content, for $39.99 on August 5. The USFIV digital upgrade and full digital bundle will be available on Steam August 8 for $14.99 and $29.99, respectively.

Check out the launch trailer.