are you the same character in portal and portal 2

The portal gun can create two distinct ends blue and orange. During the gameplay, the player needs to explore the rooms with the use of an aperture science portal device called a portal gun. In the game, the player can take on the role of the protagonist named Cell and plays from the first-person view. The game takes place in mysterious science-fiction laboratories. The game offers a combination of shooter, physics-based, and strategy elements and lets the player engage himself in an exploration experience. Portal is an Addictive, First-person Perspective, Action, Sci-fi, Puzzle-platform, and Single-player video game developed and published by Valve.

Contrast lets you generate and shift whenever you want, craft unique objects, and use them to solve the problems or use them to go between the platforms and enjoy immersing yourself into an amazingly addictive game-play ever. With the brilliant nature of fantastic mechanics, Contrast lets you manipulate the sources of Light, create shadows, go over and under several obstacles, solve challenging puzzles, and enjoy moving through the worlds. It allows you to manipulate the laws of physics by the use of your powers, move between the two worlds and engage yourself into amazing physics-based puzzles, solve several different challenges, and complete the game objectives. An unknown Power holds the two worlds together. In the year 1920, the game asks you to be the protagonist Didi, a young girl who possesses a unique ability to dreamscape from one world to another.

The game takes place in two different worlds one is a Dark and Shadowy 2D world, and the other is the Realistic 3D World. According to the story-line, you can travel between the two worlds in the blink of an eye. Contrast is a brilliant new Action-Adventure and Puzzle-Platform video game developed by Compulsion Games that allows you to be part of the two different worlds at the same time.

Are you the same character in portal and portal 2