I liked the idea, the game mechanics were clearly communicated and easy to grasp. I would work a bit on the level design though. The game played like a typical puzzle platformer but it did not really have any puzzles to solve. In all levels, I just went for the straight and most obvious way until I reached some wall, then switched and went with the other character and this worked for all the levels. I think what this game is missing is some dynamic effect like a switch or something that would change the sign of some platform/wall. Such an element would allow you to build levels which require multiple character switches. Good job on making the gameplay quite smooth without any significant bugs, glitches or nuisances.