Susie's Idea
Susie? You want to ACT? Aww, what's your idea?
Ralsei, when selecting Susie's Idea during the K.Round rematch, Chapter 1
Susie's Idea (JP: スージィのアイデア) is a recurring ACT usable by Kris, Susie, and sometimes Ralsei. It costs 0% TP, other than its appearance in the Flowery fight in Chapter 5, and has a wide variety of effects. Most variants of Susie’s Idea involve using another member of the party as a projectile.
Susie’s Idea makes its first appearance in the rematch against K. Round. Upon its selection, Ralsei expresses joy at Susie wanting to ACT, with Susie saying that she will need him for it. The ACT begins, where Ralsei is used as a projectile to attempt to knock K. Round's crown off its head. Susie’s Idea becomes Throw after its first usage.
In Chapter 4, Susie's Idea reappears as an ACT selectable against the Titan after striking it with 2 DualBusters. Susie states that Kris will need to put their life in her hands, "kinda literally". Selecting the ACT ends the fight, as a cutscene plays of Susie dunking Kris into the Titan, as the SOUL seals the Titan from the inside in a manner similar to a Dark Fountain.
In the Garden, Susie's Idea reappears in the scripted encounter against a Floradinn, being a part of a set of 3 ACTs which replace Check for the fight. It is preceded by ShowLove, and succeeded by Ralsei's Idea, which successfully ends the fight. The ACT has Susie attempt to show her idea of love, where she states that all she knows is that "someone's gotta like you first".
Susie's Idea also appears in Flowery's fight as SusiesIdea, after Ralsei is sent to prison in the party's place. It costs 48% TP. Susie notes that the flower pedestals her and Kris are on have stopped moving vertically, stating that if they want to get to the fountain, they will have to do it another way. Susie distracts Flowery, launching Kris onto the climbing segment of the fight, ending the traditional combat section of the encounter.
- In the fight against the Titan, Susie says “Get dunked on!!” prior to leaping towards the Titan. This is in reference to the scene from Undertale’s Genocide Route after choosing to SPARE Sans, in which he says the same phrase in the Game Over sequence.
- While not an ACT, "Susie's Idea" also appears as a dialogue option before Susie makes the Dark Fountain of the 2nd Sanctuary in Chapter 4.