Ultra Street Fighter IV was released on Japanese NESICA systems on April 17. However, the fifth new character, Decapre, was not playable at first, as Capcom was still fine-tuning the character. She was added to the roster of the arcade version at a later date, via an update patch.
As Ultra Street Fighter IV neared its digital and retail releases, two new features were revealed: save/reload states and Network Simulation. Save/reload states allow players to pause gameplay in training mode and replay it again with a press of a button. Pressing start will save a state and select/back will reload this state. This will allow players to perhaps find out what follow-ups after a hit confirm, practice juggles easier or to replay a certain scenario to find out what offensive/defensive options are available