Wouldn’t swalot be muk 2.0? And garbodor be 3.0?
Well, yes and no. Swalot’s kinda dull, don’t get me wrong, and in terms of being a Poison-type blob it’s more or less the same idea. Swalot’s schtick is different, though, in that it doesn’t have Muk’s industrial pollution theme – it’s a totally 100% natural formless blob – and instead is defined mainly by being essentially an ambulatory stomach with a face.