But the game itself is still very good.
Let me answer your question and borrow a famous saying from Yisu fans: Before the first level, you abused yourself, and after the first level, you abused yourself. It can be seen from this sentence that in the setting of Yi Su series, it can almost be said that as long as you are one level higher than the monster, you are not afraid of him at all. So this also answers one of your questions, that is, how can you tell when you are strong.
Next, I want to say that the origin of Yi Su is the most difficult of all PC Yi Su series, not only because I can't understand it (this is a fact), but also because the difficulty is really higher than the previous works, so I need to upgrade more before I play Boss. Sometimes even if I practice upgrading deliberately, I still can't beat Boss, so I need to find the experience of playing Boss in the raiders and then experience it myself. Or just patiently continue to upgrade.
For example, when I played Isu 6, I forgot to upgrade my weapon, so I was tortured to death when I played the third Boss, and it was the same when I was promoted to N level. But when I went back to upgrade my weapon and fuck him, he was killed by me in one second without showing the second and third forms, so it is said that the key to playing Boss is to have a high level and correct way to play Boss.
The final answer is that Yisu series games are all single-line, that is, action RPG, and the plot is set and cannot be changed, so of course it is from beginning to end.
Of course, the generation of Yi Su has been greatly improved. There are two protagonists, one is hidden, which is much richer than the stories from one generation to seven generations with only one protagonist (Atletico Madrid). Let's work hard.