“S-So… That’s a thing. A thing you can do. Noted.”
I’ve gotten a few questions asking if the transportation method used in Rosa’s fanfiction is canon, and the answer is: Partially. Dev can indeed possess and move between the merchandise, but it does have a limited range and there is no hallway of doors involved; It’s completely based on gut feeling and as such carries some risk.
There also has to be enough ink available to re-form at his destination (which can leave him woozy), and it leaves behind a considerable amount of discarded ink on the origin-end
which seriously contributes to the studio’s searcher problem.
Think of it more as moving his consciousness around rather than teleporting; The benefits of not having a physical object as an anchor.
(There was talk in-stream of him using pretty much anything Bendy-licensed and plushies exploding/barfing out a fully-formed Dev, but as hilarious as that would be it leaves the issue of the ink unaddressed. xD )