Lupin III: Episode 0 "First Contact"

Main hero is a bit crazy, but he's really funny and likes girls. He has a companion that doesn't like him as well. Lots of action, fights, funny scenes, great animation and soundtracks.  

Made by the same people and have lots of similar ideas: style of animation, plot lines, atmosphere, sense of humor and etc. In every mankatsu series there are short parts abut Lupin and his friends. If You liked Mankatsu watch Lupin the III movies, specials, OVAs and tv series, if you like Lupin watch Mankatsu. You wont regret. 

Similar expressive character design, animation and type of humour. Great characters and stories in both, but they're not much alike in these items. Goemon reminds me of Zoro and Fujiko resembles me of Nami, though.