Amazing progress on the game! The mechanics feel great to play and have a lot of potential.
some small ideas:
1. when you get the key it doesn't feel like the end of a level, it feels like finding a collectable and then the game suddenly ends. I think that a small reaction from the charecter can go a long way in selling the moment of sucsess. Also, maybe It should collect something more "robotic" then a key.
2. 90 degree door feels so good to activate with the magnet!! got me wondering if there can be a level where you need to get the robot somewhere without the robot involved.
sorry for any spelling mistakes, english is not my first language :)