Nice entry! I really liked the level design, the new mechanics are introduced in a nice pace and the ways they are applied are pretty interesting in each stage. I believe I finished the game, since in the last stage the character is stuck on the being pulled animation, and on the last stage there is a glitch like that (like it says on your game page). The art is very nice as well!

 I have suggestions as well, hope you don't mind :)

• Some sound effects and music would make this game feel a lot better. For instance, the right SFX would make the knight feel a lot heavier, increasing the "game feel";
• This is just my opinion, but the game seems to be kinda slow. I don't mean that it has low framerate, but the character falls really slowly, and feels kinda floaty. I think it might be the gravity that is too low, but that's a guess;
• A trajectory indicator would help a lot on the later stages;
• A tutorial would be great! And it doesn't need to be a complex one. Just saying that the player can use the mouse to pull the blocks would be enough. In the beginning I tried moving with the keyboard, and got kinda stuck for a while, not knowing how to play. When I discovered how to play properly, I really liked the game :)