1) Open the 'Ghost Shooter' demo
2) Run layout
3) Press in the order (fast):
3.1) Press 'Down' & release 'Down'
3.2) Press 'Right' (wait until the acceleration) & shoot
Sometime it happens that the character runs automatically in the direction you press the keys but I release the keys already!? You can only stop it, if you press the exactly the same keys.
Difficult to explain, it happen seemingly randomly.