David Cage has said motion controls will broaden public acceptance of videogames, but the titles must appeal to the masses for the controls to become mainstream.
Speaking with Eurogamer, Cage said "the controller is just a means" and "getting more people to play tennis" in front of the telly is not very creative.
"For me, the main challenges are in the content; how we can get rid of gameplay loops and invent new ways of playing; how we can bring more complex emotions in our experiences; how we can invent worlds, stories, characters and gameplay that will fascinate and immerse from the first minute to the last," said Cage.
"Motion control is an attempt at expanding the audience of games by getting rid of this barrier that is the controller.
"We can probably get new people playing tennis with a motion controller in front of their TV, but I am more interested in discovering how we can create content that will make them want to play more mature games. Both can be compatible, but getting more people playing party games won't support creativity unless we create different types of content for this device.
"What is important is what happens in players' minds. The controller is just a means, and won't solve all the issues we have in making interactivity a valid creative and mainstream medium."
Cage told the site he is also ready to start on new ideas, but future content from the developer will not necessarily include Move controls.
"We now have the technology and tools to make games that are fully compatible with both control systems and taking the best of each," said Cage.
"Where we will put the emphasis in the future depends on how gamers react to the Move version.
"We are prepared for both possibilities, although I doubt that there will be a huge shift with all games being motion controlled in a near future.
"It is great for certain games at certain moments, but not all players want to move and jump on their couch."
Future content was cut from Heavy Rain recently, with Quantic Dream nixing DLC in favor of adding Move support to the title.