Use a text editor such as notepad to edit the "DefaultInput.ini" file in the "\Program Files\CAPCOM\Dark Void Demo\nativePC\SkyGame\Config" directory. Find everything labeled as "DebugBindings", and change it to "Bindings". Turn off the read-only attribute of the file, and save it. Then while playing the game, press one of the following keys to activate the corresponding cheat function.

Effect	Key
Activate different speed settings	N, M, [Comma], and [Period]
Commit suicide	X
God mode	G
Refill ammunition	U
Toggle HUD	B