I first started watching this cartoon when I was 6 along with Oggy and the Cockroaches. I'm not very happy with what they did with seasons 2 and 3 though. The animation became cheaper and the characters have different personalities when compared to season 1. Sharko went from being a tough and intimidating shark to an annoying goofball that acts like a child all the time. Marina went from being the hot chick Sharko had to defend to an uglier version of herself that acts too independent. The whole idea of the ocean life growing legs and migrating to the beach and later the giant boat Zig built is really stupid. In the first season they could be used more like objects for the main characters to interact with. They made King Neptune Marina's father instead of a much younger simp who fell in love with her. Lastly, why does Sharko have feet all the time in later seasons? He always had a tail fin that would occasionally turn into feet whenever he had to walk, but now he doesn't even have a tail and has lost the ability to swim. If you want to watch this show only watch the first season. It is leagues better than the later ones.