One skill is fully described
ANOMALITH anomalization skills
FURYU publishes 12 powers. Gamerch describes No Mercy in detail; this page is not a full skill catalog or a best-skill ranking.
FURYU publishes a total of 12 powers. The five groups and the detailed No Mercy mechanics below come from Gamerch, a single wiki source.
The five groups
FURYU’s official text gives 12 powers. Gamerch classifies skills into five systems: attack, defense, shooting, martial arts, and anomalization release (異形解放). Gamerch says skills spend MP or a dedicated resource, some are cooldown-based, and upgrades add a passive. Learning happens at the base computer and costs anomalous materials plus OV. Those learning rules are Gamerch alone. The 163.com producer interview says skills do not change the story and that the team does not especially push melee builds.
No Mercy, single source
Gamerch’s page on 異形解放 describes ノーマーシー / No Mercy. It unlocks from materials dropped by the boss シラヤミガタ. MP cost is 0 and it uses a cooldown. Both arms become claws for up to five hits. Hits 1–4 are about 2.8× attack and hit 5 is about 12×. The wiki says you are invincible during the animation. No second site repeats those multipliers, so they stay “Gamerch says.” No cooldown duration in seconds is established here.
Questions people ask
What is the best skill?
Not answered here. One skill has numbers. Eleven do not. A ranking would be a guess.
Do skills change the ending?
The producer interview says no. Steam’s story text does not mention skill locks. One source for the “no” is all we have.