The controls & physics are much better than the last time I played. It was also much easier. I played several times on Easy, earning $160, before switching to Hard. Even on Hard I was able to win about as often as I lost.
I like the idea of the karate school. Spending money to learn new kicks would add some needed variety. Right now it does feel a bit repetitive. I previously played the version with the map, and as I recall, some locations had you going around corners. A bit more variety in the building would be nice.
Adding the debug menu for adjusting physics is a nice touch. I didn't mess with it, but can appreciate its usefulness for testing.