Huzzah! And yes it is portable, here's an (old and crunchy) screenshot of an uninflated one strapped onto a grineer trooper like a backpack: it's the olive green thing with the orange lights on. Once it's activated, it seems to sort of... suction itself to the floor, and refuses to move until it's deflated. There's one renegade grineer who's got himself a bunch of them and uses them as a pillow fort, it's adorable

I have no preference for which side he's on! Feel free to yeet him wherever!