Microsoft product director Aaron Greenberg has questioned the launch software line-up for PlayStation Move - claiming that most games for the device are merely modified "controller-based" titles.
Speaking to GamesMaster's Rory Smith for CVG at Tokyo Games Show, Greenberg said that MS's launch software for Kinect was in stark contrast to Move's - as it had been built specifically for the device.
"I think that most of the experiences designed for Kinect were designed from the ground up," he said. "The difference is, it seems, a lot of the games made for Move are really controller-based games that [developers have] added the Move functionality to.
"Our approach has been different, because we feel that a controller is the best way to play games like Halo or Call of Duty. So we'd rather not have you have to choose between using a controller or motion controller; we'd rather design experiences that are uniquely made for Kinect.
"Now, there is the ability to have hybrid games that combine both - but we think those will be designed uniquely for that experience too."
PlayStation Move launched in the UK and US earlier this week - to a healthy critical reception. It will launch in Japan in November.
Its initial game line-up includes original titles such as Sony's Sports Champions and Start The Party. Meanwhile, a Move edition of existing PS3 title Heavy Rain is planned for an October release, whilst Capcom's Resident Evil 5 has received a software patch to work with the peripheral.
Greenberg's comments come after Microsoft unveiled a handful of 'traditional' games for Kinect at TGS - which some have speculated may tempt hardcore gamers to the device.
Kinect is set to launch on November 4 in the US and six days later in the UK. It will hit Australia on November 18.