Stretching towards 40 years since its original broadcast on 1 April 1970, "Ashita no Joe" is one of the very first few sports anime and almost certainly the first to revolve around boxing. Based on the manga by Takamori Asao and Chiba Tetsuya, both the manga and anime are noted for being pioneers of the genre as a whole, and are considered classics.
Story: Joe is a deadbeat. He is a troubled orphan who chooses to abandon his orphanage in an attempt to find his own way of life. Walking through the slums of Tokyo, he encounters a drunkard as he is hurled from a bar. Joe disregards the drunk, and ends up in a scuff with members of the local gang. After quickly disposing of the gang members, the drunk is impressed by Joe's instincts and fighting ability. It is revealed that the drunk is Dampei Tange, a former boxing instructor, as he vows to straighten up and fulfill his dream of creating a world champion in Joe. Sounds like a typical shounen sports series in most senses, but it must be remembered that this was the story that pioneered the genre and inspired many future similar titles, and for that it is held by me in highest regard.
Art: The artwork will most likely be hard for the modern anime fan to accept, what with its charcoal-like feel and overall scratchy look, but if you have the right frame of mind to appreciate the fact that it is from an era of anime long past it is sufficient in its own right. The animation is fairly consistent and portrays the action in just the right way to get the viewer involved. Just don't go into it expecting "Hajime no Ippo" standard animation.
Sound: On the sound front, viewers must again appreciate the age of the anime. The opening and closing themes are extremely old-fashioned and do not exactly get your heart pumping in the same way a modern soundtrack might. Having said that, the in-episode soundtrack does contain some pretty classic tracks and certainly serve their purpose. The voice acting is more or less perfect, with each actor giving a truly believable performance for their respective characters. Really top stuff.
Character: "Ashita no Joe" thrives in its array of characters. In the beginning, Joe is our protagonist and is a rebellious youth always looking to cause trouble. It's hard to like a character such as him, and at times you may want to backhand him for being so damn arrogant, but it his arrogance that drives the series initially. As times passes, he becomes tamer and you'll find yourself cheering him on from the sideline as he steps into the rings rather than wishing for his demise. Tange also sees a dramatic change, going from being a lowlife drunk good-for-nothing, to becoming a respectable man, fulfilling his role as the coach in the same way that, say, Mick does in the "Rocky" films. Later down the line, Nishi serves his role as the friend despite their troubled beginnings, Yohko as a potential love interest for Joe, and Rikiishi as a heated rival. I could go on and on about the many wonderful and colourful characters, but I would never be able to provide a complete analysis. There is just so much depth.
Enjoyment: At times, it can be downright depressing, but for all the right reasons. The series doesn't set out to be a happy series, and in that it excels. It manages to capture the emotion of the viewer perfectly, and so, in all respects, this is one of the most enjoyable series I have seen, and it really opened up the doors for similar series down the line. Frankly put, if there was no "Ashita no Joe", manga and anime may not be the same today. It is not often that the death of a fictional character can warrant a real-life funeral. That's just how important this series is.
Overall: Anyone with even so much as a passing interest in sports anime should consider this a must-watch. In Japan it is considered the king of its genre and rightly so. Even nearly 40 years on, the series never fails to provide a refreshing and exhilarating experience. If you can get past the age of the series, consider this highly recommended.