* AlternateCharacterInterpretation:
** Forever of the Stars: A harsh but fair alien mind who does what he must to help his people and guides the humans who really earned their freedom out of the Castle? Or a psychopathic inscrutable presence putting the characters through Hell for kicks?
** In general the Forever get this treatment by parts of the fandom: A race of nigh-immortal beings who try to save humanity and themselves the best way they can, or a group of StarfishAliens who only created humanity to farm for their emotions?
* AwesomeEgo: The Barbarian. A complete JerkAss who only cares for his own glory? You'd better believe it. Fails to learn anything from the experience and is still as unsympathetic as he started? Pretty much. But he's got an awesome voice, constantly goes on over the top [[IncomingHam Hammy]] speeches about the battles he's won and how glorious he is, and basically steals the scene whenever he sings.
** The Rival from ''The Theory of Everything''.
* CrowningMusicOfAwesome - A lot of it.
* EarWorm: How "Day Eleven: Love" managed to avoid becoming a hit is a question for the ages.
** Dr. Slumber's Eternity Home...
** Eviiiiiiiiiiiiil Deeeeeeeeeeeevoooooooooluuuuuuuuuution...
* EnsembleDarkhorse: The Hippie.
** All the emotions from the Human Equation, Agony and Fear in particular.
* FridgeBrilliance: [[spoiler: The emotions are personified and amplified into actual sentient beings rather than mere aspects of Me's personality because the program simulating Me's situation is designed for the purpose of examining raw emotion]].
* GrowingTheBeard: ''Into the Electric Castle'' is where Ayreon really took off with upped production, ambitious songwriting, fully realized RockOpera concept and real star power in guest vocalists. It was also Ayreon's first actual commercial and critical success and regarded by many to be the MagnumOpus of the series.
* MostWonderfulSound: Dream Sequencer System Online...
* {{Narm}}: Very frequently.
* NarmCharm: It's usually so awesome, you don't care.
* NightmareFuel:
** The first track of the Human Equation's second disk, aptly called Trauma. It starts with 2 minutes of instrumental synths that gets you back into the story. Which then has Logic calm as ever, describe how Me's mother died of grief after Father left and never getting over the guilt. Worse still, the track gets soft and droning, until Anger gives a death metal scream, of "You're better off dead!" followed by all Me's emotions attempts of getting him to commit suicide.
* TheWoobie: Most protagonists and quite a few other characters qualify, but Me from the Human Equation is the most prominant..
** JerkassWoobie: Me before the resolution of Human Equation most definitely was NOT a nice person, though it is caused by much the same things that made him TheWoobie in the first place.
** The Prodigy from ''The Theory of Everything''.
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