In a surprise move, Apple invited UK developer Pixel Toys to demo the gaming opportunities of its new 3D Touch technology.
Part of iOS 9, 3D Touch measures the force of a touch; something that will typically be used as a selection short cut.
However, it also has potential gaming applications in terms of effectively providing an additional control input.
In Pixel Toys' Warhammer 40K: Freeblade game, for example, pressing down on the screen will enable you to toggle between different weapons.
More generally, Pixel Toys' CEO Andy Wafer spoke about the graphical power of the new A9 chip, which runs in the iPhone 6s and 6s Plus devices.
Calling the hardware "the biggest deal for game developers for ages", Wafer commented that Pixel Toys had been able to significantly increase both the graphical quality and the destructive nature of the game, with higher resolution textures and effects, as well as more physically-modelled objects.