Use the arrow keys and a and z keys.
I made a new engine and project at request of @GreatGameDota, of whom I used some math for my 3D engine. (Specifically to make it customizable, fixing some glitches with the engine I originally used, etc.) This engine still uses a little code for the custom part, but I did the math all on my own. (The 3D math, that is.) Reshared it.