Here's the preview of Avataro Sentai Donbrothers' 39th episode titled "Button Pressing From the Top". In this episode, Don Killer makes his debut.
While Kaito is away, Haruka and the others decide to clean up Cafe Donbura. While cleaning, Jiro finds a button that shins in seven colors and presses it. Then, an android called "Don Killer" who looks like Taro comes flying from the sky. According to the facilitator, Don Killer was created for a certain purpose. Are the Donbrothers in danger of collapsing?!