ChillOut

, Furīzu bīto, lit. Freeze Beat (フリーズビート) is a Blue tech used in. After acquiring 19 boss stars, Nikki leanrs to play a chilling song that causes Blue damage to a single target with the chance of inflicting Frozen.

Name Origin
Chill Out is a colloquialism for calm down, which was popularized in the 1970s, an era where rock-n-roll music blossomed. Additionally, the use of Chill here seems to be literal. Since this tech is Blue and is performed by a rockstar, both interpretations of the name are appropriate.