For bein' an extremely basic showcase of a demo in rpgmaker... I guess this is fine. Though there's not much else in actually working out what does what when all the encounters are pretty much instant death. Everything SEEMS to work as intended, like equipping skills on some of the monsters you get from the crystals and equipping different books where some give skills for the main character to use in battle (like the Death Note).
Other than that... nice art for some of the monsters I was able to see...