I like it. Very classic kind of gameplay. Reminds me of a lot of old Atari and Commodore games!
The level design is good, although I feel like the areas are a bit too open. Maybe that's just because it's the early levels while the player is still learning the ropes, so I don't think it's really an issue - just something to take into account later on.
My biggest gripe is the controls, though. They feel very stodgy, like the player is moving through mud. This could be improved by massively increasing both the acceleration and deceleration of the player, for a more deliberate and predictable type of movement. Precise controls are essential in a puzzle game like this. I also recommend that you look at reshaping the player collision polygon to something less round. Using angular corners on the poly will help reduce some of that "hitching" that happens when the player tries to walk around a corner in the game.
I've attached a super quick example of my suggestions.
Otherwise, good going! I think this kind of game works very well on mobile so I hope to see something soon