One character in particular talks about lots of sexual innuendos, all of which are played for laughs. This is fairly similar to the original Steins;Gate series.

There is a scene at a girls sleepover, in this scene one girl starts to fondle another girl's breasts (clothed) while complementing them and she seems to enjoy it. This scene is mainly played for laughs.

Much darker than the original Steins;Gate, more blood, more deaths, more graphic and disturbing imagery.

Lots of characters are shot or mildly wounded by knives, sometimes bullet wounds are shown close up (mainly in the second half of the show) ,though they aren't very detailed due to the animation style.

A character is shown being gunned down by a drone, later on a child is shown holding the body of the same character and the body is covered head to toe in blood, with blood also surrounding them.

In an intense combat scene multiple people are decapitated, some get their throats sliced and others are shot to death, quite graphic in comparison to the rest of the show.

A few people are sliced by a character wielding a katana, no injury detail, just blood.

In the first episode we see a character have a daydream about someone very close to them who is dead, the character who is dead bursts into blood in front of them, covering the character having the dream in blood, they can also be seen lying on the floor in pools of blood in multiple places. After this we see close ups of the dead character's face with blood pouring out of their eyes and mouth. This whole scene is accompanied by eerie music and strange noises, the entire sequence is exactly like what you would find inside of a horror anime.

S**t is used quite a bit in the second half of the show

Like most action packed anime mishaps, this one doesn't really have the most vulgar of language, but you could say some less mild PG-13 esque words like "Bastard", "Ass", and "God Damn." Hightly assume these aren't gonna offend mature audiences, but that's an opinion.

This is not a feel good show, tons of very sad scenes which are much worse than the original show. Lots of important characters die and many emotional scenes are created from these deaths.

The whole dream sequence in the first episode is very disturbing and will most likely frighten younger viewers.