History VideoGame / AstroBoyOmegaFactor

* MistreatmentInducedBetrayal: Rag used to be Rock's substitute in his presidential meetings until he became tired of being used as his puppet and got ordered to shut up when he began to questions his anti-robotic policies.

* PaletteSwap: The games does this with every single mook and even some mid/mini-bosses, to differentiate their attack patterns and properties.

* PresidentEvil: Rock starts off as this when he actually does become President of the Antarctic in the alternate timeline; he gets better though.

%%** The Blue Knight is clearly suffering from this as well; it becomes evident as to why once we learn his real identity.
* ScoringPoints: The game has various high score and best time tables for each level on the three difficulties. It also records if you were able to beat an chapter or the entire game without dying. Your {{combo}} meter acts as a ScoreMultiplier which goes up to 10 (4 B hits, finger laser, special attack), so you should use your specials every now and then to their best effect.

* SolarCPR: After the battle with the game's TrueFinalBoss, [[spoiler:remains of it end up corrupting the sun. Astro has to send over a remnant of Death Mask/Nuka in order to restore it.]]

** In the first ending, Sharaku confesses to Astro that he's one who has already destroyed many timelines due to his vile actions forcing Death Mask to kill all remaining robot live, before abandoning him by travelling to another timeline where he couldn't be affected.
* UnwittingInstigatorOfDoom: [[spoiler:Atlas]], or rather his true self [[spoiler:Daichi]] had taken Prime Rose from the hospital while disguised as a robot to fulfill her wish to see the moon. During their voyage, he had suffered fatal exposure to Omotanium and was thus recreated into his current self, without any memory of his former life. It is this fateful encounter that directly leads to Drake's quest to destroy robotkind in order to avenge his daughter, who he believed to have been murdered.

* VideoGameTutorial: It's skippable, but if you do, then you actually miss out on an Omega Factor upgrade at the end.

* NintendoHard: As in other Treasure games, you get a nice overpowered moveset, but the enemies are relentless. On Hard, enemies will tear about half of your HP with the lightest of attacks, you can have only 3 Supers, and there are MANY things that can kill you in a single hit. What's worse is that there are very few recovery items in each chapter and some of them are supposed to be the level ups that only work once.

** In terms of his fighting style, Montblanc is actually mostly Brando, a different character from the ''World's Strongest Robot'' saga, retaining only his namesake's chicken-like appearance. Something of a necessity, as the original Montblanc was a pacifist who didn't even try to fight Pluto before being killed by him, whereas Brando was a robot wrestler but one wonders why they didn't just use him to begin with.

* VideoGameTutorial: It's skippable the second time around, but if you do, then you actually miss out on an Omega Factor upgrade at the end.

%%* RobotWar: Who's winning depends on the timeline.

* VideoGameTutorial: It's skippable, but if you do, then you actually miss out on an Omega Factor upgrade at the end.

%%* SparedByTheAdaptation: Several examples thanks to the time loop. Notable examples include characters such as [[spoiler:Pluto and even Nuka!]]

* SparedByTheAdaptation: [[spoiler:Nuka, who willingly sacrificed herself to stop herself from detonating by asking his creator to dismantle her in Astro’s First Love and dies for good, gets resurrected by the Phoenix after sacrificing herself alongside Astro to save the earth in this game, getting a happy ending as Astro carries her back home.]]

** During the boss fight with Epsilon, one of her attacks has her summon a pod of dolphins as well as a static graphic of a blue whale, all of whom are animated and design the exact same way as ''VideoGame/EccoTheDolphin''.

** In addition to Tezuka works, the game is jam-packed with references to previous Treasure game ''VideoGame/AlienSoldier''. For examble, the Artificial Sun has been redesigned to resemble one of AS's minibosses and Majin Garon fights almost exactly like Z-Leo.

** During the boss fight with Epsilon, one of her attacks has her summon a pod of dolphins as well as a static graphic of a blue whale, all of whom are animated and design the exact same way as VideoGame/EccoTheDolphin.

* GiantMook: You'll often find both tiny and double-sized enemies through the game, which gets rather odd when it comes to the human ones. Naturally, their attack power matches their size.

** Some of the hidden Omega Factor characters are frustratingly hard to find. While Level 4 Sensors help (Astro will point out when a character is in a given segment), you'll still be spending a lot of time looking around. It doesn't help that at least one (Magma) is required by the plot.