A man rips a girl's top off, her bare breasts are visible

The first two seasons contain minimal amounts of actual blood. With Season 3 (Alicization), however, this season projects a darker narrative and contains a more blood and is more violent than the other seasons.

Alicization is much darker than seasons 1 and 2, and it shows in its violence, being much more violent, explicit and graphic.

Season 3 is more graphic and show actual blood and not pixels like Season 1 and 2

In the Blu-ray version, the shadow are never showing, but the eye are visible blows up, and chopping arms with a lots of sprays bloods in Season 3.

Seasons 1 and 2 use pixelated pink-red blood, while seasons 3 and 4 use graphic blood.

Seasons 1 & 2 aren't too bad; what would be expected from sword and sorcery and more PG-rating. Seasons 3 & 4 are EXCESSIVELY AND GRATUITOUSLY bloody and gory.

Seasons 3 & 4 should probably be rated TV-MA for nudity and gore.

In season 3/alicization and season 4/war of underworld there is a lot of blood if I was going rate the season 3 second half and season 4 I would rate it severe.and if I was going to compare it's violence and gore I would say it has a much blood as in Akame ga kill and some episodes have as much blood as in attack on titan

Sword Art Online takes place in the future within a virtual reality video game. There is no blood shown when people are stabbed or slashed at, the only thing that shows up is some red pixels that represent where a player was cut, or fatally injured. Therefore, one should keep in mind that the violent content here is virtual unless stated otherwise.

The storyline for episodes 1-14 goes as follows: 10,000 people are trapped in a virtual reality video game, and the only way they can escape is by completing the game, because if they die in-game, they will die in real life. It's a rather intense premise and it is said that approximately 4000 players die as a result.

There are near-constant battle sequences between monsters and players. These scenes can be fairly intense.

A few suicides (they jump off a ledge and then burst into pixels as they hit the ground).

Episodes 15-25 follow a similar premise as the first 14, but players do not actually die if they do in-game.

A boy's hand is chopped off with no blood (in the game). He then takes his other hand and lunges it through another man. He later has his hand regenerated (since it's in a game).

There are uses of "damn", "hell", "ass", "asshole", "bastard", "bitch", "son of a bitch", "goddamn", "pissed", and "shit" throughout.

A character gets knocked out when someone drugs him using a syringe.

A few people drink at a bar. They are all over the legal drinking age.

A boy can be seen passing something similar to a cigarette to a girl when she asks what he was doing.

The scene where a character shoots a robber to death will no doubt disturb viewers even though it was an act of self-defense. A rather intense scene as well.

A girl thought she saw a ghost in one episode.

Season 3 is the most intense and more mature season so far.

The main villain of Alicization - War of Underworld, Gabriel Miller (aka Subtilizer), is a complete psychopath, and the scenes involving him are unpleasant, to say the least.

Season 3 of Episode 10 is showing extremely intense and disturbing violence and rape scene, that is no way to watch for kids.

Seasons 3 & 4 (Aliceization) contain many scenes that are questionable even for early to mid teens. Rape, extreme violence, blood and gore are regular in these two seasons. Many of the scenes are emotionally disturbing for all but the most jaded viewers.

The action and battle scenes, which are near constant can be fairly intense. There are many situations that seem hopeless and are meant to evoke an emotional response from viewers.

In multiple scenes, a boy witnesses a bunch of his friends being killed by monsters. One of those deaths haunts him for a long time.