"character continuity" It's in the contract for all the Teenage Mutant Ninja Turtle films.

i fuckin loved tmnt as a kid. the comics, not the shit cartoon.

prolly because that's the way chinese henchmen look in real life - if they looked like David Yip - you'd be confused like

and they use the same 4 latino gangsta type actors in every film. the skinny, the tall, the fat and the hard.