Game Engine bug?

Hello. I’ve got weird physics in GE, is it because I missed something or is it buggy? The cube goes through solid wall, rotates strangely, shaking like crazy while it should be sitting tight in that place.

phybug.blend (485 KB)

Z key - track to actuator, rotating main, face to target; X - target rotation; C - locRot, that could be changed to angV, with which nothing will change. Tutorials are welcomed.

The mass and the form factor of your cube are messed up, one is set to 0 the other one to 0.050.
Set them to the default values (mass=1, form factor=0.4) and the cube behavior should be closer to your expectation.
I think the track to actuator won’t be able to properly function in this situation, in the sense that will continue to spin the cube ignoring collision bounds.