An Outside System Skill (システム外スキル, Shisutemu-gai Sukiru?) is an ability, usually referred to as a skill, that either involves unconventional use of system-controlled skills, the exploitation of loopholes in the system, or the use of the player's human abilities to enhance their gameplay. Although such abilities are referred to as "skills", none are regulated by the system, though some involve making use of system skills in ways that were not intended by the developers of the game.
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[]
| Skills | Known User | Used in | Description |
|---|---|---|---|
| «Arms Blast»[1][2] | Kirito | Sword Art Online | Attacking a weapon's weak spot to destroy it. |
| «Skill Connect»[3] | Kirito Eugeo |
ALfheim Online Project Alicization |
Bypassing the post-motion delay for a Sword Skill by timely activating another Sword Skill, usually with a second sword, just as the delay is about to begin. |
| «Spell Blast»[1] | Kirito | ALfheim Online | Using elemental Sword Skills to cut through spells. |
| Bullet Deflect [citation needed] | Kirito | Gun Gale Online | Using a photon sword to deflect bullets. |
| «Distinguish» [4] | Kirito | Gun Gale Online | Isolating sounds in a VR space, thus eliminating noisy sounds and focusing on irregular sounds in the system. |
| «Precognition» [4] | Sword Art Online | Predicting the next attack. | |
| «Insight» [4] | Sword Art Online | Predicting a monster's next attack from long range via their attack pattern. | |
| «Mislead» [4] | Sword Art Online | The ability to trick monsters' AI's learning function to burden them. | |
| «Switch» [4] | Sword Art Online | Players switch positions mid-battle to recover Hit Points and burden the learning abilities of AI-controlled monsters. | |
| «Hypersense» [4] | Kirito Death Gun |
Sword Art Online | Sensing another player's presence or even killing intent before seeing or hearing them. One of the hardest Outside System Skills to develop. |
