A two-segmented meter enables the use of "Shadow" moves that have upgraded hit properties and can cause more damage/combo hits, though certain characters' meters function differently.All characters can use a Shadow Counter (a technique similar to the Alpha Counters in the Street Fighter Alpha series) while blocking, to instantly cancel into a shadow attack.Killer Instinct's input lag is limited to 81 milliseconds (compared to 122 ms for Street Fighter V for Play Station 4, 89 ms for Guilty Gear Xrd -SIGN- for PS4, and 105 ms and 107 ms for the Xbox One and PS4 versions of Mortal Kombat X, respectively).
A second season of characters was released between 20.
A third season, along with a port of the game for Windows 10, has been released on March 29, 2016.
Rewards are carried over between playthroughs of Shadow Lords, and additional content is planned to be added to the mode via future updates.
An accompanying multiplayer mode allows players to use their items and guardians earned in Shadow Lords during online player battles.
Killer Instinct also features the 'Shadow Lab' - a mode that studies how a player plays the game and then uses that information to create a 'Shadow' fighter, an AI for any character which is specifically based on that player's playstyle and techniques for that specific character, complete with that player's gameplay mannerisms (even going as far as imitating a player's taunting) and flaws.
Players can create Shadows to play against other players online, even when the player is not present.An additional single player mode, "Shadow Lords", was added to the game via a free update on September 20, 2016.Serving as the story mode to Season Three, Shadow Lords requires players to assemble a team of three playable characters and choose between a series of procedurally-generated scenarios and battles against Gargos's mimic fighters, similar to a roguelike.A training mode is also included, which features a recordable CPU dummy, in-game frame data, as well as viewable hit-boxes.The game's online multiplayer features a monthly tier-based ranked league.Shadows attempt to adapt to fights the way their owner would.