Outside System Skill

An Outside System Skill is a skill that players can use in game, however, the skill does not exist in the skill registry. These skills are developed through a player's capability in game and are acquired through experience and practice put in by the player themselves throughout playing time.

Known Outside System Skills

 * Arms Blast - An ability to destroy weapons, by attacking their weak points with a powerful blow, used in Sword Art Online.
 * Skill Connect - Users: Kirito and Eugeo - Games: ALfheim Online and Project Alicization. It is a skill that requires excellent timing by using one-handed Sword Skills with two swords in parallel, activating the skills one after the other just as the delay is supposed to kick in to nulify the delay.
 * Spell Blast - Ability to use Elemental Sword Skills to cut through spells in ALO.
 * Bullet Deflect - User: Kirito - Game: Gun Gale Online: Ability to use swords to deflect bullets.
 * Distinguish - User: Kirito - Game: Gun Gale Online: The ability to isolate sounds in a VR space, eliminate noisy sounds, and pick up irregular sounds in the system.
 * Prerecognition - an ability that allows a player to predict the next attack move.
 * Insight - a skill that helps predict monsters' next attack from long range via their attack pattern.
 * Mislead - The ability to trick AI monsters' learning function to burden them.
 * Switch - players switching positions mid-battle to recover HP and burden the AIs learning abilities.
 * Presence Sense/Hypersense - Known in Aincrad as one of the hardest Outside System Skills to obtain. It is a skill that allows the player to sense another player's presence before seeing or hearing them. It is also said to be able to sense the player's «Killing Intent».
 * Quick Change - Used in Sword Art Online, normally when a monster has snatched your primary weapon. Cancels the «Equipment Information» of a currently equipped weapon, allowing you to quickly switch to a reserve weapon in your inventory. The snatched weapon must be recovered within 3600 seconds in order to retain ownership of the weapon.