To make the question more clear here is a video of what it looks like in the game..
I would like to know the answer to your question too.
I think at least i can say that even though there are no 3D modelled objects in the game the coordinate system used to put the floor texture in perspective is a very crude 3D engine. Construct2 does have direct3D and WebGL capability but how to program this with the actionscripting of Construct2 is beyond me. If it is even possible..
Curious to see other peoples responses!
Kyatric Ever seen anything like this done in C2?