Challus Mercer lacks the Marker-induced insanity he had in the original, but commits far greater crimes. His tentacle attacks are just as telegraphed and easy to dodge as they were in the original to boot.

The added attacks amount to an easy to dodge attack where it spews bombs at you and making certain parts of the arena hazardous with acid, which doesn’t change much.

Anti-Climax Boss: Despite attempts to make it more difficult, The Hive Mind is still a pushover.

Likewise when she leaves Isaac behind she says that he'll find another way out, but considering the Ishimura is minutes away from catastrophic failure, does she sincerely believe that or is she just trying to lie to both Isaac and herself to assuage her own guilt?

How much more of an Anti-Villain is Kendra? While she's undoubtedly nicer than her original counterpart, she still does questionable things such as putting suspicion on Hammond when she should know that he has no idea about the Marker's presence.

Given what happens to Isaac after the events of the game, the Red Marker would have had very good reason to kill him in order to prevent Convergence. In fact, the Nexus-Hivemind going absolutely berserk when Kendra tries to take the Marker away, and trying to stop Isaac from leaving Aegis VII can all be viewed as attempts to keep the Marker's impact contained prior to its final destruction. Given this, it paints the Marker's actions in a far different light, since everything it does, from causing the ship to go into a decaying orbit and deactivating the ADS system, to blocking communications, poisoning the air, and scuttling the approaching military ship, could be viewed as it trying to prevent humans from taking it to someplace where there would be enough humans to begin a Convergence event, prevent humans from having an opportunity to study it, and prevent signal-infected humans from going out to create more Markers.

Nicole's final message indicates that she successfully communicated with it, asking it to stop what it was doing.

Dead space types of slasher