You can change the ingame prompts to the assigned keyboard keys or, apparently, whatever device you want. It correctly detected my XFX gamepad, for example. You can also change all the key settings and there are 3 or 4 key presets to choose from. This is no shoddy console port.
In other words, check the settings menu before playing!
Edit: I also declare my post to be more awesome than Deraldin's post, Salamando not withstanding.