Ninja. The Teenage Mutant Ninja Turtles have been around for a long time. Originally a comic series which in turn was originally written as a spoof on other comic books, it has since spawned multiple movies, video games and even more comics.
The 1980's series didn't take itself seriously, with lots of “corny” moments, forth wall breaking and lots of jokes. The 2003 series is different as it's darker and grittier, with less focus on humour, much like the original comics. It’s actually a good taster of the comics, while still being aimed at children. While some humorous elements are in the 2003 series, it's a serious show with funny moments, not a funny show with some serious moments.
Master Splinter: "Right, we need to form a plan to get into that building"
Michelangelo: "I know what we could do..."
Leonardo: "If it involves posing as a Pizza Delivery boy, then don't say it"
Michelangelo: "Erm... Never mind, I'm just hungry. Hey who wants a Pizza?"
My One Big Highlight
While I love all the turtles and the other main characters, it's the Shredder that steals the show. He is a very menacing villain, and one of the strongest villains I have seen in any animated show. It would be quite interesting for him to fight Spider-Man from the Animated series, as I reckon it would be a close fight. Cowabunga!
Elephant In the Room
While the majority of the first four seasons are excellent, the 5th, 6th and 7th seasons try something very different. One is set away from New York, the next is set entirely in the future and the last has redesigned characters and style. If you like shows that don't change much throughout its run, then this version of the TMNT isn't for you.