This was a fun crossover, which also serves as a decent finale for the 2003 version of the Ninja Turtles.
I can see why the fans of the 1987 kinda disliked the way in which it portrayed the characters from that series as goofballs (I for one, don't remember that much 4th-wall breaking in the 1987 cartoon) but the overall film is pretty enjoyable, being a nice tribute to the franchise as whole.
I just wish they had used the original designs from the first seasons for the 2003 incarnation, instead of the Back to the Sewer art-style.
I can see why the fans of the 1987 kinda disliked the way in which it portrayed the characters from that series as goofballs (I for one, don't remember that much 4th-wall breaking in the 1987 cartoon) but the overall film is pretty enjoyable, being a nice tribute to the franchise as whole.
I just wish they had used the original designs from the first seasons for the 2003 incarnation, instead of the Back to the Sewer art-style.