Video game sequels must be an improvement of everything that the first game did, and Portal 2 is one of the biggest examples of it. It took everything good on the first game and did it even better, at the same time, avoided all the mistakes of its predecessor.

The graphics have aged very well, the textures, the water, the art direction, everything is more beautiful than the previous game. the environments are more varied, you go through the classic test chambers and the gaps between them, seeing how the aperture laboratories work. you will also have moments where you will explore the old aperture facilities and learn more about its history.

The puzzles remain extremely creative and fun, becoming more difficult as the game progresses. They added more mechanics to the game, such as a liquid that increases Chell's jump, another liquid that increases your speed and a type of technology that allows she and objects to float.

the soundtrack in Portal 2 is better and more present, with futuristic electronic music tracks that match perfectly with the game's atmosphere. Just like the first game, this one also has a great song in the end credits.

Now the game has three active characters interacting with you, Wheatley, GLaDOS and Cave Johnson. They are all extremely charismatic and funny. Character interactions add a lot to the game's story.

If the first game was short and suffered from a lack of content, Portal 2 definitely doesn't make the same mistake. The game has a longer, more challenging campaign, as well as a fun multiplayer mode with lots of new stages to complete with a friend.

This game is incredible, one of my favorite games of all time. I definitely recommend it to everyone that likes puzzle games.