In the demo version, reach the final room, "Act 1", which is a theatre. Use the Blink ability to jump to the platform above as you enter the room. Jump to the next platform, then finally to the platform where scroll #6 (Warbred Grues) is located. The jumps from platform to platform may require some practice. If you fall in the middle of the stage, an intermission sequence will begin and the demo will end. You will then have to reload your last saved game to try again.
Load a completed saved game with all 36 scrolls collected. Start a new session to have all previously unlocked items.
Collect all 36 scrolls and complete the game.