Noirsensei ponders...
I understand that this is European and all - and while it was a charming little read, it hardly needs a separate genre tag. Whatever genre the old disney comics are - there you go. Same style. Manga I'd understand because it has an entirely different aesthetic, down to page orientation and all, but if you told me this was something out of a Canadian Nickelodeon kids magazine or something, I wouldn't know the difference.
Come to think of it, Marsupialami strips actually ran in Disney Adventures stateside for a bit when I was young. I thought he was just another failed 'wacky character' alongside god knows how many other project Disney started up and quickly aborted back then. The more you know!