I'm not a fan of puzzle games, but besides that I think the idea is cool, and I liked the style that you are going for. 

   (Feedback)

1. The dialog is very important in these types of game so make sure that you have a specific key to it, else the player might press to skip a dialog by accident.

Bugs : 

- Colliding with the wall and getting stuck.

- The text is warping in the middle of words like "thi

s".

- Run animation starts when the player presses any key/button.

- When you go to the left the portal show some purple particles (I don't know if the particles are supposed to show at all time, but it is only showing when the player moves).