 If you liked
Trigun
|
 ...then you might like
Mob Psycho 100
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Trigun and Mob Psycho both engage with deep philosophical questions relating to violence, nonviolence, and the value of human life. The protagonists are also similar in that they both have immense power, and engage with the responsibility that comes with it.
Mob Psycho is, however, much more lighthearted and comedic than Trigun, and takes a more optimistic tone overall.
Trigun is similar to Mob Psycho 100 in the way that it is a tale of morality. Both tell a story about the main character that refuses to hurt/kill people. They also start out as great action comedies that have more of a slice of life feel. Towards the end, it gets more serious and intense, with a lot more of a plot.