Normally the hero has to start from square one in order to gain more power to achieve their objectives while being full of energy and well, One Punch Man's premise is just the opposite. This cliche-break makes the anime really interesting, in season 1 the animation is very good, the characters are very interesting, the anime is funny and there are so many captivating sub plots that every episode is fun and rewarding in its own way. However, in season 2 the animation got worse, the storyline got super slow and the anime sort of "lost a bit of life" in my opinion. I don't know what happened, I just know it's not as funny, there are many boring sequences, some texture and sound effects lost quality. I really love this anime, I think it deserves more. I hope the upcoming seasons will recover the quality season 1 has.