One main plot point is exploring the rooms. Another is solving the complex puzzles in each room. And finally, uncovering the overall mystery that ties all the rooms together.
The main plot points include the discovery of the different rooms which are filled with all kinds of strange objects and mechanisms. Then, there's the part where you have to figure out how to use these objects to solve the puzzles. For instance, you might find a key that fits into a strange lock on a box, and inside that box could be another clue or a part of a device that you need to progress. Also, there's the overarching mystery of what the purpose of all these rooms and puzzles are, which is gradually revealed as you play through the game.
In The Room 2 game story, a key plot point is the exploration of the various rooms, each with its own unique layout and set of puzzles. You start with a simple - yet still mysterious - room and as you solve its puzzles, you move on to more complex ones. Another important aspect is the connection between the rooms. There are often hidden passages or clues that lead you from one room to another. And the ultimate plot point is the revelation of the big mystery. As you progress, you start to piece together the story behind these rooms, why they exist, and what they are ultimately leading to. It's a story that unfolds gradually through your interactions with the environment and the solving of puzzles.