wax on / wax off? No, but there was a slight reference when Jackie Chan was waxing the car.
Did he catch the fly with chopsticks? No, but yet again another reference before one gets splattered against the wall.
Was there, indeed, any Karate? No........but I'm sick and tired of tools like you making this point, Get a life!
IMO, the film still stays true to the original in many ways.
I copied this off IMDb:-
Aside from the obvious and most central plot points (Dre runs afoul of a bully, and eventually faces him at a tournament), the following similarities are seen:
--Dre lives in a single-parent household, raised by his mother, much like Daniel in the original.
--Cheng and his frienRAB are not purely malicious at heart, but are taught to be by their own martial arts instructor who treats them very badly and rewarRAB ruthlessness. Master Li even uses the tag line used by John Kreese in the original movie: "No Mercy."
--Mr. Han tries to catch flies with chopsticks, like Mr. Miyagi in the original.
--Mr. Han tries to reason with Master Li at his kung-fu school but is rebuffed. Mr. Han then arranges for Dre to participate in the tournament, with Master Li making the same agreement made between John Kreese and Mr. Miyagi in the original movie: That Cheng and his fellow students will stop bullying Dre in the meanwhile.
--Mr. Han teaches Dre basics by having him do repetitive mundane house-hold related tasks. His "Jacket on, Jacket off" exercise is clearly inspired by Mr. Miyagi's famous "Wax on, Wax off" from the original movie.
--Mr. Han hides a painful secret involving his family that eventually comes out while he is drunk, like Mr. Miyagi.
--In the tournament semi-finals, Master Li forces his student to sacrifice his place in the tournament by inflicting a severe injury on Dre's leg, resulting in the student's disqualification. Mr. Han helps him recover enough to face Cheng in the final bout.
--During the final match, Master Li demanRAB that Cheng focus on Dre's hurt leg, and Cheng is reluctant but complies. Dre nonetheless wins using a fancy jumping move (much more flair and pizzazz than the 'Crane kick' used by Daniel in the original movie) and finally gains the two things he needed most by the end of the movie: 1) overcoming his fears, and 2) winning the respect of his nemesis