Germans Love David Hasselhoff: The main reason it was even made in the first place. Top Cat has a very big fanbase in South America. So the film was produced and animated by a Hispanic animation company and released in Spanish-speaking nations first as a result.
Sequelitis: Don Gato: El Inicio de la Pandilla (known in English as Top Cat Begins), a prequel to both the series and the movie, received mixed reception in its own country in contrast to the favorable reviews the first movie had. The shift to all 3D animation was criticized as well.
So Cool It's Awesome: Believe it or not, this was the reaction it got when it's all about the original format of the movie. Just watch the "Don Gato y su Pandilla" trailers, and that should give you a clue. Obviously, most of the rave comments and reviews are Spanish. This has also become one of the biggest box office openings in Mexican cinema history.
So Okay, It's Average: Scathing reviews and criticism towards the animation aside, those who didn't completely loathe the film feel this way.
Special Effect Failure: The combination of 2D Flash and 3D animation in the movie causes various perspective problems.
The Woobie: TC during his time in Dog Jail. While attempting to dig himself out, he overheard from a surveillance screen that his friends should forget all about him, so he decided to forget about escaping as well.