It looks really nice.
My only criticism would be that trajectory should follow a more smooth parabolic path instead of having so much hang-time.
Other than that though, the hits seem to connect smoothly, the animation transitions are solid, and the physics for jumping and running are similarly good. Looks like it controls well seeing how you change your momentum in jump, but I would of course have to try it to say for sure.
Definitely excited to see what becomes of this project. I hope you release the engine, because I have recently taken an interest in Unity and would love to play around with it!
I'd have to do some cutting up of the project though since I used smooth moves to create the animations and I'm obviously not allowed to release smooth moves. But if you have any questions with a melee combat system let me know!
I am pretty big enthusiast when it comes to fighting games so I wanted to tackle it in the unity environment. Has been very informational. Let me know if you have any questions about it. Other ppl have asked me too on unity forums and what not about it. I might release a short tutorial on how to send ppl at a certain trajectory and talk about some frame data, Since there needs to be balancing between hitstun/blockstun to avoid infinite combos or perfect blockstrings.
