A major feature of the Sixaxis controller, and from where its name is derived, is the ability to sense both rotational orientation and translational acceleration along all three-dimensional axes, providing six degrees of freedom.[3] This became a matter of controversy, as the circumstances of the announcement, made less than eight months after Nintendo revealed motion-sensing capabilities in its new game console controller (see Wii Remote), led to speculation that the addition of motion-sensing was a late-stage decision by Sony to follow Nintendo's move. Further fueling the speculation was the fact that Warhawk was the only game shown at E3 that year which demonstrated the motion-sensing feature. [citation needed] Also, some comments from Incognito Entertainment, the developer behind Warhawk, said that it received development controllers with the motion-sensing feature only 10 days or so before E3.[4] Developer Brian Upton from Santa Monica Studio later clarified that Incognito had been secretly working on the motion-sensing technology "for a while", but was also withheld a working controller until "the last few weeks before E3".[5]