lol, so you were traped in some kind of a hole - as if you where traveling for like an hour and now you are frustrated cuz you need to start over your journey? That's how game is broken ? Shot button don't do shit - so how do you know how many bullets it takes to kill an enemy ? Slight changes in direction don't mess with my momentum, but the bigger one does. Have you tried to run and then suddenly change your direction at least for 60deg without losing any momentum ?
As far as I can tell movement and balance issues for you do have the common root. And it's not a game or developer. Have you tried to level up ? There are like stats you can increase, perks you can learn. If you don't have enough bullets - you can use melee. If you not familiar with combat - it's common thing to learn for every new game you play .
Jokes aside. Is it the hole you fell in ?