The Troub-Bubble is a male robotic entity from the 2017 Continuum
The Troub-Bubble is a bouncing killing machine filled with Incendium gas, which electrifies anything it comes in contact with. Sentient enough to like wearing an adorable jaunty hat, the Troub-Bubble was hired by supervillainess Black Heron in the 1960's to guard her island lair, a task in has faithfully fulfilled ever since, even though it faced Scrooge McDuck twice (once in the 1960's, accompanied by Bentina Beakley, and once in 2018, accompanied by Webby Vanderquack.
Behind the scenesEdit
The Troub-Bubble appears in the 2018 DuckTales 2017 episode From the Confidential Casefiles of Agent 22. Like many elements in the film, it is a homage to an element of 1960's spy fiction, namely Rover, an iconic character from the TV series The Prisoner, quite similar to the Troub-Bubble (though hatless).