Despite describing it as Tumble Pop, the Australian Classification Database has now listed Tumblepop, originally a Game Boy title and now on the way to 3DS Virtual Console in PAL regions.
Tumblepop was originally an arcade game and has been described as a cult classic, though it's unclear whether that praise extends to the Game Boy port. The objective is to work through a number of stages, all within different cities that you navigate, while items can be collected and bought with progress. The individual stages are relatively small and you're tasked with sucking up ghouls and monsters, Ghostbusters-style, before promptly moving on. It's not the best known of titles, it's safe to say.
Below is some gameplay footage from YouTube to help you decide whether you're interested. See how long it takes before the stage music forces you to lower the volume.