A possible (partial) work around;
Teleporting Anywhere, via hex editorOnce you get past somewhere you can use your teleporter stones to get out, but doing this repeatedly would be a pain.
Boratus' cellar
X = 80 1D ;
Y = D0 A7 ; map 02 - at the stairs
X = A0 1E ;
Y = 30 A9 ; map 02 - in the cow's cell