Street Fighter EX2 is 3D head-to-head fighting game co-produced by Capcom and Arika originally released in as a coin operated arcade game for the Sony ZN-2 hardware. It is a sequel to the original Street Fighter EX, a 3D spinoff of the Street Fighter series. A revised version of the game titled Street Fighter EX2 Plus was released in for the arcades as well and subsequently ported to the PlayStation. It was followed by Street Fighter EX3.
The primary new feature in the game are "Excel Combos", ("excel" being abbreviation for "extra cancel"). Much like the "Custom Combos" featured in the Street Fighter Alpha series, Excel Combos allows player to connect a series of basic and special moves for a limited time. During an Excel Combo, the player begins with a basic move and can follow up with a different basic move or follow-up a basic move with a special move, which can be followed by a different special move. However, the player cannot connect any move with the same move, nor can they cancel special moves into basic moves during an Excel Combo.
The game also features four hidden characters: Kairi from the original EX returns as a hidden challenger, along with new characters Shadowgeist (a costumed vigilante similar to Skullomania) and Nanase (a young girl who wields a staff). Garuda, also from the original EX, returns as a boss character. All four characters can be selected by the player after meeting certain requirements
In addition to the Super Combos and Excel Combos in the original EX2, EX2 Plus also features "Meteor Combos", more powerful Super Combos which can only be performed filling up all three stocks of the Super Combo gauge. While the previous EX games feature characters who had Lv.3-only Super Combos, in EX2 Plus it became a standard feature for all the characters, with each character having at least one Meteor Combo. The Excel Combo system from the original EX2 was also slightly revised. The player can now connect a basic move or special move into the same move instead of being limited to a different move.
A home version of Street Fighter EX2 Plus for the PlayStation was also released in , released a few months shortly after the arcade version. The PlayStation features a standard arcade, versus and practice modes, along with an all new "director mode" and a "bonus game". The home version also brings back Hayate as a secret character.