Adjust screen centering...
	Adjust screen height...
	Hidden room...
	Invincibility, full maps...

Pause game play and press C + Up or C + Down.

Pause game play and press C + Left or C + Right.

Locate the test area from the library on level 3. Enter the test of magic and locate the red carpet section with two candles. Cast Levitate to see a hidden room.

Pause game play and press 3 + 7, 1 + 9.