You can play PS5 games on PS4 using a DualShock via Remote Play
The phat controller.
You can play PlayStation 5 games with a DualShock controller on a PlayStation 4 via Remote Play.
Eurogamer has confirmed the feature works. There's even a menu, accessed by pressing the PlayStation Button, that lets you jump to the PS5 Control Centre, among other things. However, you are not able to use a DualSense controller with the PS5 Remote Play app on PS4.
The PS5 Remote Play app popped up on PS4 yesterday. The app lets you use the PS4 to connect to and control your PS5. The options let you switch between 540p, 720p standard and 1080p streaming.
To use Remote Play, you have to enable it on the PS5 you're connecting to first. To do that, on your PS5, go to Settings, System, Remote Play, and turn on Enable Remote Play.
As already confirmed by Sony, you are not able to use a PS4 controller to play PS5 games on a PS5. Sony has come under fire for the decision at a time when Xbox Series X games are playable with any Xbox One controller.
Explaining its decision, Sony said it believed "PS5 games should take advantage of the new capabilities and features we're bringing to the platform, including the features of DualSense wireless controller". These features include adaptive triggers and haptic feedback.
However, you are able to turn off these DualSense features in the PS5 settings, and now we know you can play PS5 games with a DualShock via Remote Play.