Never played Monster Hunter before, but this reminds me of Vindictus' Lionotus fight.
Except that was a bit more 'multi-staged' I guess. He had a rider(healer and projectile spammer) on top, and you had to use bombs available in the stage to get him off. After that you fought the beast itself and you had a bunch of tools to help you like chain hooks or use spears to get 'breaks'. That was a 8 man raid though.
So, is this just a straight MH clone, or is it doing enough to differentiate itself? I see MH clones every once in a while, but they're usually 'MH, but with technology', 'MH, but more focused on Japanese myhtology', 'MH, bur lower budget and kinda worse', with like a couple neat ideas.