Although "Portal 2" is 10 years old, Valve did an outstanding job making this excellent puzzle game down to the visuals, gameplay, music, science, and of course the characters.

The main plot of "Portal 2" revolves around a test subject named Chell. Chell wakes up 50,000 years after the main events of the first game. From there, you meet a robotic core (a circular robot that has no other features besides one eye) named Wheatley, voiced by Stephen Merchant. Merchant was perfect for the role because he made Wheatley a compelling character with good dialogue and jokes.

Wheatley guides you to a room with a Portal Gun, and from there, you make your escape from the abandoned testing rooms at Aperture Science.

The Portal Gun is a device that lets you create two portals: one blue and one orange. Once an object enters one portal, it will leave through the other. Living things can enter through the portals as well. The Portal Gun allows you to go to areas where you wouldn’t have access without. The device is my favorite thing about this game.

Another one of my favorite things in "Portal" is the overall theme of abandonment and loneliness, as you are the only human in the game. In "Portal 1," everything is sleek and modern, but in "Portal 2," everything is abandoned and in ruin. As you progress through the different testing rooms, you can see that some chambers are covered in vines and some electronics have sparks flying and barely work.

The testing rooms are a confusing mess at first, but the more time you spend in them, the more you understand them. The Portal Gun makes testing more interesting. It allows you to think, and it makes the testing more fun. You have to be careful because these tests can be dangerous. However, dying in this game is not as frustrating as in other games. In my opinion, it allows you to think and strategize and avoid the thing that gets you killed.

The visuals are one of the most impressive parts of the game. They make you feel like you are a part of the video game's fictitious world. And Valve did an excellent job showing how big and dark everything is behind the scenes. This game came out in 2011, but even with today’s quality in gaming, it still holds up.

I would improve the game by reducing the waiting time of the loading screens. The loading screens can be 20-30 seconds long, and they happen quite often. It usually occurs at the end of each room, when you take an elevator.

In conclusion, "Portal 2" is one of my favorite PC games. It has excellent visuals, is vastly entertaining, has great controls, and offers a great story. And if you are looking for a new game to play, it’s only $10 on Steam. It’s also available on Xbox 360 and PlayStation. If you haven’t played "Portal 2," why not go ahead and buy it.

Is "Portal 2" a good game that's worth playing? I have to say a definite yes! The science-fiction puzzle/platformer game has stuck with me for so long that I started playing it again with a fresh mind and finished it. And after all of that, I still enjoyed my experience playing the game a second time.