The "push blocks" style of puzzle game isn't too original but introducing stealth is interesting. I like how well the blocks and avoiding enemies sight goes together.
Visually, there's something very charming about this game. In so few pixels you get such a strong feeling for the world which is pretty impressive.
My first issue is that inherently pushing blocks can become quite tedious and that is noticeable here. I think this is because it requires a lot of steps and busy work to actually complete the puzzle. This isn't helped by the fact that the puzzles themselves are generally quite easy. Granted, I didn't finish the game, the tedious side of it began to weight on me, so perhaps the game has some more interesting puzzles later but it felt as though the ramp in difficulty was quite slow once guards were introduced.
My second issue is a lot more minor and something that doesn't get in the way too much but is never the less questionable. The text. The text doesn't really add anything, a lot of it is rather bland statements, lacking any sort of character or intrigue which is a little disappointing when visually the game is so charming. This is really nitpicky now but I also think it doesn't help calling them "enemies". If it were a rather context-less combat oriented game I could see the term working, but when there's a proper context established I feel something more characterizing could have worked. Oddly, the description seems to handle this a lot better than the game itself.
Nitpicks aside, whilst it begins to become tedious in part due to the lack of challenge, there's a lot of charm to the game and I never felt any levels were badly designed, just a little lacking. There are some clever twists on the block pushing trope which makes the game fresh enough to be worth playing. I guess the best way to put it is that the game is good but a little thinly spread.I hope this feedback can help in someway.