https://www.facebook.com/falcarraghkarate/videos/128595663852206/    
 Usage of kensetsu waza  to be adapted and integrated
 with
 atemi waza -  ne-waza  - shime waza - nage waza
etc etc
 to achieve  result

Don Came - Origins 2 (Kushanku) ep 1 - Opening of the kata

Don Came - Origins 2 (Kushanku) ep 10 - Mae-Geri and Empi

More Kushanku Kata
Via
Don Came, Kissaki Kai Chief Instructor UK
Don is an excellent Martial artist & Practical Instructor
one of the best,
based in Eastbourne UK
If you can please go there !!!
you will not be disappointed

https://youtu.be/DRX-JI3qBeU

Don Came - Origins 2 (Kushanku) ep 9 - Shuto-Uchi, Mae Geri and 180 turn

Don Came Sensei Kissaki Kai UK
explains another application
from KuShanku Kata

Don Came - Origins 2 (Kushanku) ep 8 - Shuto-Uchi and Mae-Geri

Kushanku 

Don Came - Origins 2 (Kushanku) ep 7 - Shuto-Uke and Nukite

Falcarragh Karate Club Member acts as uke,
 in this explanation/demonstration
of an application  from   Kushanku
by Don Came the chief Instructor of Kissaki Kai UK