Sexual jokes, mostly made by Boomstick, are frequent throughout seasons 1-2, however they are told less frequently and not as explicitly in the following seasons.

There's a lot of violence and gore in this series, with combatants from different media shown getting brutally executed in all sorts of ways with lots and lots of blood and gore.

Some standout examples include:

"Omni-Man vs. Homelander": Omni-Man takes his time throughout the whole fight to toy with Homelander, causing him to snap and threaten to kill Nolan's son Mark. Incensed by this, Nolan violently rips Homelander's jaw before ripping his heart out, then cramming it into his torn-open mouth, and brutally crushing his head into a gory mess. This is EXTREMELY bloody and graphic, but also immensely satisfying due to Homelander being extremely evil.

"Shredder vs. Silver Samurai": After setting the whole forest on fire due to a deflected lightning bolt, Shredder walks towards Silver Samurai before karate chopping his arm off with a huge amount of blood spraying everywhere, then kicking Harada's sword towards his own face, impaling it and knocking off his helmet. Afterwards, Shredder decapitates his rival, then grabs his disembodied head and crushes it under his hand into a bloody mess.

Given the nature of the show, violence and death is prevalent in every episode and often in comically exaggerated manner.

Constant swearing throughout the series, though not as severe after season 4.

The F-word is said at times from seasons 1-4 but is bleeped out in the following seasons.

Boomstick occasionally makes jokes about alcohol, including beer.

The fights can be intense, especially if the viewer is a fan of one of the characters in the episode.