The characters are fun and exciting. Saitama (One Punch Man) is hilarious in his completely calm way he handles every threat, no matter how severe it actually is. Genos is a fun character to watch grow and change as he grows closer to Saitama and comes to admire him more and more. And the literal ARMY of supporting characters are basically all amazing. The bike hero, Mumen Rider, and all the villains and the S-classers are all great. Trust me.
The animation is OUTSTANDING! Every single fight scene is like a work of art. The fluidity of the actions happening on screen is simply splendid and the way the show transitions from the fight scenes to the less detailed and fluid comedy or scenes with no real movement is spectacular. Still though. The fight scenes are AMAZING! And I would be hard pressed to find a flaw in the animation of them. The OP is also pretty outstanding. It makes the show seem awesome and gives you all these images of Saitama beating things to show you how truly awesome he is.
The comedy as well is pretty great. There are a few moments when it feels slightly forced, but never to the point where it feels like they're begging you to laugh. Mostly the comedy is flowing and natural and feels effortless, like they didn't even think people would find it funny, but it's hilarious. For example, the FLY! THE FLY! THE FLY SCENE IS AMAZING! And it makes you laugh, even though it doesn't feel like they're TRYING to make you laugh.
One Punch Man is awesome. If you have a show hole from a supreme action show (like Hunter x Hunter) it's the perfect thing to help fill it. The characters are awesome and the animation is impeccable. I highly recommend this awesome superhero parody thing of an anime!
