So, you can think with portals...

[Elim Garak]

I've solved similar puzzle in God Of War 3

[AeneasBK]

Looks good =)

[Deleted]

Now my brain hurts

[PizzaSHARK]

pretty cool, but isn't this kind of the same thing fez did, only with a more mobile camera?

No, Fez was basically a direct copy of Echochrome and a couple of other games. In games like that, you move the camera in a set direction. In the game the DigiPen students are working on, you are the camera.