Death and how it's an essential part of life is central to the plot. The idea that memories are important as they keep the people we care about with us. Perseverance, courage, and curiosity are also on display.
Violence ranges from light slapstick to brawls with punches and kicks that have a hard impact. During one bar fight with broken bottles and snapped pool cues, a character yells, "this is fun!" Scenes include armored giants with big axes and a huge giant made of green flames. The "lost souls" escape from limbo and attack citizens of the Land of the Dead. A character's mission is to "kill death." Scenes of threat include bridges breaking and falls from heights. There is also some fantasy violence with magic. References to the death of loved ones, including parents.
Two characters fall in love and kiss.
Characters are called "crazy," "scum," "wussies," and "chicken."
Character mentions a "beer belly."