You earn 2 points for each victorious level and 1 point for failure.
The importance of the four attributes is in the order of damage > health > shield > recovery.
After completing the first level, don't rush to play the following levels. Instead, go to the upper right corner and allocate your points. Max out damage first. Then, repeatedly play the first level until your damage is at the maximum. With these attributes, you can breeze through the first three levels horizontally. For the fourth level, you need to invest in health, and for the last level, it's best to max out health and shield.

Combat consists of two parts: "Guessing" and "QTE" (Quick Time Event).

First, let's talk about QTE:

Your choice in the "Guessing" part is only effective if the blue player's indicator (representing you) stays in the red area. The NPC's indicator works the same way. If both indicators are in the red area, you proceed with "Guessing." Winning the "Guessing" game deducts NPC health, while losing deducts your health. If the NPC's indicator is not in the red area, NPC health is deducted directly. QTE directly determines whether you can win, so it's crucial to be accurate in QTE.

Next, let's discuss "Guessing":

All three skills have damage associated with them, with "Scissors" having the highest damage. For the first four levels, simply choose "Scissors" without much thought, and you can proceed straightforwardly. In the fifth level, the NPC inflicts high damage, so try not to lose health. If you miss the NPC's QTE, there's no need to insist on choosing "Scissors"; "Rock" and "Paper" have slightly lower damage.

There are two possible endings, and you can choose to replay the final level to unlock them.
I hope this helps you understand the content better!