Various aliens are killed, some villains, some not. There is a large battle in the season finale where a relatively famous alien character dies in a fight.
While no one has been shown USING, a major plot line revolves around rival crime syndicates (one of which smuggles “spice” - the Star Wars equivalent of opium). Boba Fett experiences a hallucinogenic trip during episode 2, albeit for spiritual purposes
e2 towards the beginning, a cute mammal like creature screams as the male Hutt twin uses it for a sweat rag. I was scared he was gonna eat the poor thing.
Season 1 episode 2: Some dog-like creatures are punched and yelp a couple times but none die. One of the Hutt twins is holding a hamster-like creature but he puts it down. A creature comes out of the sand and is shot around 16 min. A bantha is shot around 17 min, the characters hide from enemy fire behind its body. A second bantha is shot at 29 min, characters hide behind that one too. A lizard goes up Boba Fett’s nose around the 39 min but runs back out later. Season 1 episode 3: a bat and a lizard are both eaten by a frog just after 9 min. 3 dead banthas are shown around 14 min but you don’t see them die. 2 chameleon things cooked like turkeys and something with tentacles on the table at 19 min. Season 1 episode 4: see part of a bantha skeleton at the beginning. A frog thing is bonked on the head in a cooking pot and lid put on after 18 min but it escapes later when the pot is knocked to the floor. Season 1 episode 5: story opens in a meat facility, carcasses are hanging on meat hooks. One carcass is cut in half during opening fight scene. Season 1 episode 7: Some little snakes are eaten just before 9 min.
As is usual with Star Wars, all firearms are laser weapons. However, as is usual with Star Wars, many people are seen being shot and killed with lasers.
In a flashback in Episode 5 there’s a blast that has a very mushroom cloud like appearance. Take place during the story of the destrón Mandalore. It’s not a nuclear weapon, but the explosion is similar.