Short answers, pulled from the story.
Street Fighter EX3 arrived on the 4th of March 2000 as the very first game released for the PlayStation 2 console in Japan. This release date marked a pivotal moment in video game history by bridging the gap between 2D sprite-based fighting games and the 3D graphical era.
Street Fighter EX3 was developed by Arika and published by Capcom. This title served as the third and final console installment of the Street Fighter EX series.
The developers replaced the Guard Break system with a new mechanic called the Surprise Blow. This feature allowed players to execute hard attacks without consuming energy from their super bars.
The Critical Parade is a feature that allows players to call out a tag-partner to battle simultaneously with their main character for a limited duration. This addition introduced a layer of complexity to the combat that had never been seen before in the series.
Ace is a government agent sent to investigate a secret weapon being developed in an underground base. Players could develop this new character through a Character Edit Mode that allowed for custom fighting styles and personalized move lists.