Forward -> Mouseward, so if you point too close to yourself you go into a spin, as you repeatedly turn & step past the mouse. Others have mentioned it, so that oddness could come from breaking wasd from the compass and attaching it to the mouse.
Thanks. I am thinking about making a not-jam version, as there are things that I never got to put in (I'm adding "contemplation &testing of wasd->compass" to the list as an option.)