As a horror game, Mindkiller 2 will be more radical than the original game, and players may encounter more content that makes them uncomfortable than before, which will be reflected in Mindkiller 2's ESRB (Entertainment Software Rating Board) rating. While the official rating of the new game has not yet been announced, Remedy said that this time it will receive an M (16+) rating instead of the T (teenager) rating obtained by the first game.

The original Mind Killer contained some horror elements and drew inspiration from Stephen King's novel, but it didn't have a full horror game at its core. MindKiller 2 is different, with game creator Sam Lake confirming that this will be the scariest survival horror game Remedy has ever built.
In a recent interview with IGN, Lake said that Mindkiller 2's M rating is a "liberation", which means that Remedy no longer has to censor and block some of the elements in the original design. Lake added: "Horror stories are psychological, layered, and deep mysteries. Yes, new works will be terrible. ”