However, there's still a chance to save both. You've received a Distress Call from a Robot Girl aboard the Life Stream who is in need of repairs. You help her get back on her feet, but the repair unit can't fix the mechanism that allows her to move under her own power. So, the both of you decide to team up and put an end to the rebels' destructive plans.
The game was released on September 15th, 2021.
Metallic Child contains examples of:
- A.I. Is a Crapshoot: Practically every single robot onboard the station has gone into a frenzy, with the Metallic Children in charge of leading the rebellion. They only became like that after Aiden overrode their coding and set them loose to cover his tracks.
- Big Bad: Dr. Irene, Rona's creator and technically her mother, who for some reason started the robot rebellion aboard the Life Stream. It's actually Dr. Aiden who's responsible.
- Big Bad Wannabe: Dr. Locus desires Irene's research on the Core Gem energy, is pretty much a huge Jerkass whenever he's on-screen, and is against the idea of robots being anything other than a way to make profits. Aiden ends up taking the spot of Big Bad right near the end and even kills him after so much build-up.
- Draconic Humanoid: Magna.
- Drop the Hammer: One of the weapons Rona can wield in the game is a gigantic mallet.
- Entitled to Have You: It's never outright said, but events heavily imply that one of the major factors in Aiden's betrayal was Irene never taking a romantic interest in him after working together closely as colleagues for several years. Given Irene's aloof nature around people and his timid disposition, it's unclear if this was all in Aiden's head or Irene genuinely viewing him as just an assistant and friend in the workplace. It unfortunately reaches If I Can't Have You… levels once Aiden hacks Rona into shooting Irene.
- Final Boss: Magna, the ultimate Metallic Child. However, given its lack of personality and how it needs a pilot in order to operate, one could argue that the real final boss is actually Aiden.
- Fire, Ice, Lightning: The Metallic Childs Fira, Icela, and Lighton use these, respectively.
- Guest Fighter: The collaboration event DLC "Of Rice and Cores" features appearances by some of the characters from Sakuna Of Rice And Ruin. Downloading the pack allows you to switch out Rona's model for Sakuna's, along with a fox mask-wearing version and a white palette swap. Sakuna's friend Kokorowa is also included, along with changing Pan into Tama cosmetically. Both Sakuna and Kokorowa have their own skills and unique weapons, a major surprise, since Kokorowa in her own series never did any fighting at all. The demon Black Shadow is also featured as a new optional Keeper boss.
- Gone Horribly Right: Locus' entire plan to steal Irene's research on the Core Gem energy involves him driving a wedge between her and her assistant Aiden. He manages to get Aiden on his side with his smooth talking and implanting seeds of doubt, but he clearly did't expect Aiden to grow so incensed with Irene to the point of trying to kill her.
- Health Meter: Rona's is a red one located in the top-left corner.
- Heroic Sacrifice: In the ending, Rona and Pan cause Life Stream to self-destruct, with them still inside, in order to stop Aiden's army from reaching Earth. Ultimately subverted when it turns out they survived by hiding in Magna.
- Karma Houdini: Aiden escapes after the final battle, but the game ends with Rona and Pan vowing to find him.
- Law Of 100: Rona starts the game with 100 hit points.
- Also, when you get the core level gauge on the bottom left corner of the screen to 100%, you can install Super-Cores.
- Mecha-Mooks: There are plenty of robots to battle in the game.
- Never My Fault: Pretty much the defining characteristic of Aiden, once he descends into villainy. He blames others for apparently looking down on him or not trusting him enough, despite revealing his true colors as a murderous sociopath, showing that Irene was correct in not sharing all of her data with Aiden. Even Magna is blamed for his defeat, despite being manually piloted by him. Rona lampshades this right after the final battle.
- Robot Girl: Rona, along with several other Metallic Children.
- Robot Hair: Rona has white hair, and some of the other Metallic Children have hair in varying colors.
- Red Herring: You are rightly led to believe that Locus is who drove Irene into starting the rebellion or that he's been the one behind everything from the start. It turns out that Aiden betrayed them both.
- Rule of Three: Collecting three mini-cores results in Core-Connect, which causes Rona's body to start glowing, and her combat skills to be optimized.
- Sequel Hook: While Rona manages to stop the majority of Aiden's army from reaching Earth, Aiden himself manages to escape with several Troopers, and Rona and Pan resolve to hunt him down.
- Throw the Mook at Them: One mechanic in the game allows Rona to grab enemies and throw them at walls, into hazards, and even at other Mooks.
- TV Head Robot: Pan, Rona's friend, has a TV screen that he uses to make eye expressions.
- Unnecessary Combat Roll: Rona can do this to dodge under missiles.
- Villain: Exit, Stage Left: Aiden, after the final battle.