Link-strikes (リンクアタック, Rinku Atakku?, lit. Link Attack) and blindside-strikes (バックアタック, Bakku Atakku?, lit. Back Attack) are co-op attacks the player can perform with party members and their Level 10 chocobo in Final Fantasy XV.
The player can perform link-strikes with the three default party members, Gladiolus, Ignis and Prompto, but also with guest party members. Linked attacks can trigger when blindside-attacking an enemy, or when parrying an enemy attack. Link-strikes can be performed with a party member nearby who isn't incapacitated by a status ailment or in Danger. Royal arms don't trigger link-strikes.
Once a link-strike initiates they cannot be halted and the participants cannot be hit for its duration. The Friendship Band accessory allows link-strikes to initiate even across a distance. It is often the easiest to trigger link-strikes with Ignis because his AI behavior has him stay closest to Noctis. In addition, he also possesses the most powerful link-strike if Noctis strikes an enemy from behind with a greatsword.
The Critical Link Ascension ability makes all link-strikes critical hits. Limitless Link allows link-strikes to break the damage limit, and Link Up boosts link-strike damage. Super Link Up further boosts link-strike damage.
The player can perform link-strikes with Aranea Highwind. The Beauty of Teamwork Archive Highlight is obtained on the bridge in the room before the Barbarus corridor when the player performs a link-strike.
Noctis and Prompto can perform a blindside-link against a cactuar in Whack-a-Cactuar 2. Doing this to the Gigantuar nets 4,000 points.