I had some of my most exhilarating moments of "emergent" (ugh, that word) gameplay since Halo CE last night.
Without giving anything away, the second Tallneck I discovered was located in an environment
which featured multiple mechs "protecting" the Tallneck, and blocking my route to traverse the Tallneck itself.
Just this one section lasted me a solid two hours and tested all of the skills and weapons knowledge I'd learned so far, including laying traps, resource management, overriding, using potions and generally thinking on my feet and second guessing the AI. Honestly, it was like watching an incredible CGI movie, the way it played out was so tense, epic and exciting. It's amazing to think that the way this section played out for me will be completely different for other players depending on their skill tree, upgrades, weapon selection, time of day, available resources etc.
Today I spent at least four hours preparing for my first cauldron - crafting, hunting, upgrading and getting familiar with my new weapons. It really feels like a proper open world hunting game where you're planning and adjusting your tactics to suit the environment and the enemies you're facing.
First game since Bloodborne that has had such an impact on me, it's compulsive, addictive and feels fresh and exciting. An instant classic.