How to defeat Lynx?

In Shadow Fight 2, the first boss you must defeat is called Lynx. defeat him! I have upgraded all my weapons and armor to max for a level 6 player. I have tried everything, but nothing seems to work. How can I defeat Lynx?

Equipment

1. Complete offers to gain gems and buy gem gear.
2. Play survival until you reach level 7. (What I did)

Techniques

1. Upon Lynx's invincibility, keep away from him and attack using only simple moves (avoid combos and long range attacks at all costs)
2. Duck against his throwing knives (jumping leaves you vulnerable for a second knife)
3. Lynx's weakness? Long/medium range low attacks. Strike low with to prevent him for hooking you, and long range attacks help stop the throwing knives.