YMMV / Hundred

• Anti-Climax Boss: The Arc Villain, Vitaly, goes down very easily at the hands of Judal at the end of the anime since she doesn't have an E-Barrier like Hundreds, allowing Judal to simply kill her with a single gunshot. She ends up dying before the midway point of the last episode, which is somewhat jarring.
• Captain Obvious Reveal: Hayato has vague memories of a silver-haired girl from his childhood who was attacked by a Savage. Right when he enters Little Garden, a silver-haired, suspiciously feminine "boy" gleefully pounces on him like an old friend. Who could "Emile" possibly be? ...Fortunately, the story doesn't try to keep this a mystery for more than half the first volume.
• Complete Monster: From the anime: Arc Villain Vitaly Tynyanov was the lab director of the Warslan Research Facility where ill children were taken in to be vaccinated with Savage fluids. Many died in the process and, of those who lived, the injections continued. The remainders either went berserk and attacked each other or simply died out, leading Sakura Kirishima to be the only who survived the experiments. Feigning kindness to three former child slaves, Vitaly enlists them to capture the cores of Savages and Variable Stones so she could produce a biomechanical army of monsters; the siblings were ultimately pawns she cared little for, even going so far to use a device to force them to work against their will. During the siege on Little Garden, Vitaly meets her former lover Judar Harvey and reveals she committed all these atrocities to spite him, intending to bring all of Little Garden and what he stood for down. As she's dying, Judar expresses his appreciation for her contributions, but Vitaly smiles in cold satisfaction at how her horrific research served a purpose even in death.
• LGBT Fanbase: Thanks to his skintight and revealing battle suit, Hayato Kisaragi has attracted a sizeable amount of gay fanart on Pixiv
• Ship-to-Ship Combat: Hayato/Emilia vs. Hayato/Claire vs. Hayato/Sakura. Have fun, guys!
• They Copied It, So It Sucks!: The series got a lot of criticism for being a "clone" of Infinite Stratos, especially the first couple of anime episodes where a lot of the plot points played out very similar to what happened in the beginning of Infinite Stratos.